Challenge Mode

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Challenge Mode is a gauntlet of scenarios (12 per region, totaling to 180 once all regions get challenges) in which you make a blueprint that adheres to special rules (varies between challenges) to defeat waves upon waves upon enemies. Successful completion of a challenge will give you a reward which may come as a module or something that would help influence gameplay.

There are 2 modes to challenges: NORMAL MODE, and HARD MODE.

Hard Mode imposes extra restrictions to increase the difficulty on top of the restrictions from Normal Mode, such as:

• All challenges have double the required amount of waves needed for completion.
• All challenges disable Town-related bonuses from various sources (Museum, Arcade, Shipyard, etc.).

UPDATE: Page needs to include Hard Mode Challenges https://github.com/bluecats-Perfect-Tower-2/bluecats-PerfectTower2-comp./blob/main/Challenges/Hardmode/Pre%20Era/README.md

UPDATE: Use these or link above for normal mode https://github.com/bluecats-Perfect-Tower-2/bluecats-PerfectTower2-comp./blob/Yoshi128986-normal-mode/Challenges/Easymode/Pre%20Era/README.md

Note: If the solutions on this page do not work for you, your Laboratory and Museum powerstone Boosts may not be sufficient.

If you have alternate solutions to Challenges that are not here, please use the Discussion page or create another solution box instead of editing an existing solution with your own solution.

Forest Challenges (Region 1)

Level #1 (c1-1)

A Symphony Of Water And Fire.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 111		Tank	Max. 7 total Modules have to be maxed T1 or above Modules will be set to maxed T1	None	Phoenix Bounce
Solutions
Pre-era non-hardmode (credits to @V̷̾̕ó̴͗i̸͊̽ḑ̴͋Cannon#4271)
Import Code: Rm9yZXN0IENoYWxsZW5nZSAxO2ZvdW5kYXRpb24uc3RvbmU7cmVnZW5lcmF0aW9uLmJhc2ljO2F0dGFjay5iYXNpYzthdHRhY2suc3BlZWQ7YXR0YWNrLm11bHRpc2hvdDthdHRhY2suYm91bmNl Modules: Offensive Module: Basic Attack Attack Speed Multishot Basic Bouncing Defensive Module: Stone Foundation Basic Regeneration
Pre-era hardmode (credits to @Eternal663)
Import Code: Y2hhbGw7Zm91bmRhdGlvbi5kaWFtb25kO3NoZWxsLmZpcmU7c2hlbGwud2F0ZXI7c2hpZWxkLmJhc2ljO2JhcnJpZXIuZWxlY3RyaWNpdHk7YmFycmllci53YXRlcjtyZXNpc3RhbmNlLmVsZW1lbnRhbA== Modules: Defensive Module: Diamond Foundation Fire Shell Water Shell Basic Shield Electricity Barrier Water Barrier Elemental Resistance Notes: Auto Skip, Wave Streaming and Wave Surge Software from inside the Headquarters are important (although not necessary) to make this much faster and to keep the Shell Modules from reseting

Level #2 (c1-2)

The Dirt Is Alive. Can You Overcome 325 Waves Of Angry, Tanky and Bossy Earth Elementals?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 325		Tank Boss	Max. 5 total Modules have to be maxed T2 or above Modules will be set to maxed T2	None	+5% Resource Drops per Completed Challenge
Solutions
Pre-era non-hardmode (Credits to @Tortoise Box#9049)
Import Code: Q2hhbGxlbmdlXzI7YXVyYS5oZWFydHN0b3BwZXI7c2hlbGwuZWFydGg7YmFycmllci5uYXR1cmU7Zm91bmRhdGlvbi5kaWFtb25kO3NoaWVsZC5iYXNpYw== Modules: Defensive Module: Heartstopper Aura Earth Shell Nature Barrier Diamond Foundation Basic Shield Notes: Diamond Foundation and Earth Shell (Guarantees survival), Basic Shield, Nature Barrier (One hit KO all enemies), and Heartstopper Aura (If you don't have Nature Barrier and import this blueprint, it will still work because of Heartstopper Aura - it just will take longer). You can switch out Diamond Foundation Granite Foundation (Possibly other ones as well but haven't tested). Adding more software will probably make the run even faster.
Pre-era hardmode (credits to @Eternal663)
Import Code: Y2hhbGw7YXR0YWNrLmNvbWJ1c3Rpb247c2hlbGwuZWFydGg7Zm91bmRhdGlvbi5kaWFtb25kO3NoaWVsZC5iYXNpYztiYXJyaWVyLm5hdHVyZQ== Modules: Offensive Module: Combustion Defensive Module: Diamond Foundation Earth Shell Basic Shield Nature Barrier Notes: Auto Skip, Wave Streaming and Wave Surge are necessary to stack up max ammount of enemies on top of each other for massive dmg from Combustion, otherwise use Heartstoper Aura or Unholy Aura although it will take much longer.

Level #3 (c1-3)

Nature Strikes Back. Make Sure To Hold Back The Incoming Waves Of Archers And Assassins.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 500		Archer Assasin	Max. 5 total No Modules have to be maxed T3 or above Modules will be set to maxed T3	None	Stab Prevention
Solutions
Pre-era non-hardmode (credits to @Coffee#5926)
Import Code: Q2hhbGxlbmdlIDM7YmFycmllci5maXJlO3NoZWxsLm5hdHVyZTtmb3VuZGF0aW9uLmRpYW1vbmQ7c2hpZWxkLmJhc2lj Modules: Defensive Module: Fire Barrier Nature Shell Diamond Foundation Basic Shield Notes: This is just a modified version of @Tortoise Box 's script for challenge 2 but remade against nature enemies. It takes a bit of time but gets the job done. Unlike in challenge 2 the diamond foundation is actually required here unless you've spent a lot of time in the museum and in the fire and nature experiments.
Pre-era hardmode (credits to @Eternal663)
Import Code: NclNCsIwEEDhq4TsDRR35gJuPEFxMSajCcSZMD8gSO9euujyfe8fX8NxSifTeAtrLMvlGu6PoDzcOlMGF0gNQUyN50TJb3aqcMxUO3yZataGYyQCc8EsqF0NqOAp+CsN6HN2fG47 Modules: Defensive Module: Heartstopper Aura Diamond Foundation Nature Shell Nature Resistance Nature Exchange Notes: Fixed for v0.51.0. Keep your software on to not lose the Shell buff between waves. This one takes a long time (~50 min / 25 min on 2x / 17 min on 3x). Potential Improvenments: You won't see your hp bar moving for the entire run, so you could swap out either Resistance or Exchange for Unholy Aura to increase your dps by 40% (UNTESTED).

Level #4 (c1-4)

Rage Of The Forest. A Combination Of Various Elemental Types Try To Break Your Glass Tower.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 50		Unknown	Max. 5 total No Modules have to be maxed T4 or above Modules will be set to maxed T4	None	Planned Strike
Solutions
Pre-era non-hardmode (credits to @DeserveVictory#3600)
Import Code: Rm9yZXN0IENoYWxsZW5nZSAjNDthdHRhY2suc3BlZWQ7YXR0YWNrLm11bHRpc2hvdDthdHRhY2suYm91bmNlO3NoYXJkcy5pY2U7YXR0YWNrLnNwYXJr Modules: Offensive Module: Attack Speed Multishot Basic Bouncing Ice Shards Sparks Notes: Was trivially easy. I have +145.2% to all 8 elements from my Museum. You may have to disable wave streaming
Pre-era hardmode (fixed by @Eternal663)
Import Code: RcoxCoUwDADQq5TuFgQne4G//BN8HGIbaDCmxaSTeHcX5a+Pd/qVO7aDxNTP7ufTOEzu83VauRtViWAGaQt7ZyMt1aIaklBIBUgwhxWY35Th2ARVI+0NresfnqANMfvlugE= Modules: Offensive Module: Multishoot Steini's Chained Ball Darkness Attack Darkness Impetus Attack Speed Notes: Fixed for v0.51.0. No Software. Might die on later rounds if your multishoot luck is rotten.

Level #5 (c1-5)

Are The Neutrals Evolving?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 20		Unknown	Max. 6 total Max. 2 Modules have to be maxed T5 or above Modules will be set to maxed T5	Neutral enemies are IMMUNE to anything except universal Universal damage can ONLY damage neutral enemies Tower element type is considered universal instead of neutral	Universal
Solutions
Pre-era non-hardmode (credits to @Traxaner#3385)
Import Code: QzU7YXR0YWNrLnVuaXZlcnNhbDtmb2N1cy51bml2ZXJzYWw7Zm91bmRhdGlvbi5kaWFtb25kO2F1cmEuaGVhcnRzdG9wcGVyO2VuZXJneS5iYXNpYztlbmVyZ3kucmVnZW5lcmF0aW9u Modules: Offensive Module: Universal Attack Universal Focus Defensive Module: Diamond Foundation Heartstopper Aura Utility Module: Energy Energy Regeneration Notes: Used with 250% universal museum powerstone boost Forest Gift or Checkerboard Aura should be strictly better than Energy Regeneration as Universal Focus shouldn't need to be used more than 6 times, and Energy starts off with max energy(40000)
Pre-era hardmode (credits to @Bickerll)
Import Code: aGFyZCBjaGFsbGVuZ2UgNTtlbmVyZ3kuYmFzaWM7ZW5lcmd5LnJlY3ljbGluZztmb3VuZGF0aW9uLmRpYW1vbmQ7YXVyYS5oZWFydHN0b3BwZXI7Zm91bmRhdGlvbi5tYXJibGU7c3BlbGwudm9pZA== Modules: Defensive Module: Diamond Foundation Heartstopper Aura Marble Foundation Utility Module: Energy Energy Recycling Ultimate Module: Void Notes: Wave Endurance and previous software are necessary. Use void after the end of wave 11.

Level #6 (c1-6)

Piercing "Arrows". Only Waves Full Of Archers Are Now Trying To Tear Down Your Tower.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 60		Unknown	Max. 10 total Max. 4 Max. 4 Max. 2 Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies have only 1% of their original health Enemy damage is multiplied by 10	Forest Gift
Solutions
Pre-era non-hardmode (credits to @MasonTheDuke#8227 and Kotton#2664)
Import Code: Q2hhbGxlbmdlIDY7c2hpZWxkLnVuaXZlcnNhbDthdHRhY2submF0dXJlc3RvdWNoO2F0dGFjay5tdWx0aXNob3Q7YXR0YWNrLnNwZWVkO2F0dGFjay5maXJlO2F1cmEudW5ob2x5O3JlZ2VuZXJhdGlvbi5yZWxhdGl2ZTtmb3VuZGF0aW9uLmRpYW1vbmQ7Zm91bmRhdGlvbi5tYWdtYQ== Modules: Offensive Module: Multishot Nature Attack Fire Attack Attack Speed Defensive Module: Shield of Frost Unholy Aura Frost Aura Daigoparry Ultimate Module: Universal Shield Note: I had about 400% in fire and nature in the museum. You may need more or less depending on other factors.
Pre-era hardmode

Desert Challenges (Region 2)

Level #1 (c2-1)

The Wizards Of Light Blend In With The Scenery.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Wizard	Max. 10 total Max. 2 Modules have to be maxed T1 or above Modules will be set to T1	Modules start at level 0 Utility modules keep their original tier and level Enemies don't drop XP Gems cannot be used to upgrade modules	+1 per completed challenge. (Applied retroactively)
Solutions
Pre-era non-hardmode (credits to BöshiBöshi (@Yoshi128986#6141))
Import Code: RGVzZXJ0IENoYWwgMTtmb3VuZGF0aW9uLmdyYW5pdGU7c2hlbGwubGlnaHQ7Zm91bmRhdGlvbi5kaWFtb25kO3JlZ2VuZXJhdGlvbi5yZWxhdGl2ZTtzcGVsbC5kZXNwZXJhZG87Ym9udXMub2ZmZW5zaXZlO2VuZXJneS5iYXNpYztlbmVyZ3kucmVnZW5lcmF0aW9uO2JvbnVzLmRlZmVuc2l2ZTtlbmVyZ3kuZmxvdw== Modules: Offensive Module: Desperado Defensive Module: Light Shell Granite Foundation Adaptive Regeneration Diamond Foundation Utility Module: Offensive Pack Energy Energy Regeneration Defensive Pack Energy Flow Notes: Upgrade your utility modules to T5 to be less dependent on RNG. Keep spamming desperado through out. It will take a while.
Pre-era hardmode

Level #2 (c2-2)

Sandstorm From The Root.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 175		Unknown	Max. 8 total No Modules have to be maxed T2 or above Modules will be set to maxed T2	None	Energy Flow
Solutions
Pre-era non-hardmode (credits to @V̷̾̕ó̴͗i̸͊̽ḑ̴͋Cannon#4271)
Import Code: RGVzZXJ0IENoYWwgMjthdHRhY2suZGFya25lc3M7YXR0YWNrLmZpcmVicmVhdGg7c291bC5oYXJ2ZXN0aW5nO2F0dGFjay5zcGVlZDthdHRhY2subXVsdGlzaG90O2F0dGFjay5jb21idXN0aW9uO2F0dGFjay5ib3VuY2U7YnVyc3QuZGFya25lc3M= Modules: Offensive Module: Darkness Attack Fire Breath Soul Harvesting Attack Speed Multishot Combustion Basic Bouncing Darkness Burst Another solution: PcsxDsIwDEbhq0SZYKBDRjrCLRCDk/5Qq8GpbGdC3J2FMH7Se++Ya8euLG7xHG7xCoN6uKxUK+SJkMIhndJxJncq27SQbgKzYduBZSC3LgVDr16dbW0+59bMJyHvih+IdXQP1v+TybjE++cL
Pre-era hardmode

Level #3 (c2-3)

Assassins Don't Like Sand. They Are Not The Only Type Of Enemy You Will Face Between The Dunes ...

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Assassin Boss	Max. 6 total Max. 3 No Modules have to be maxed T2 or above Modules will be set to maxed T2	None	Headhunting
Solutions
Pre-era non-hardmode (credits to @V̷̾̕ó̴͗i̸͊̽ḑ̴͋Cannon#4271)
Import Code: RGVzZXJ0IENoYWwgMztzaGVsbC5lbGVjdHJpY2l0eTtmb3VuZGF0aW9uLnN0b25lO2F0dGFjay5tdWx0aXNob3Q7YXR0YWNrLnNwZWVkO2F0dGFjay5ib3VuY2U7YXR0YWNrLmVhcnRo Modules: Offensive Module: Earth Attack Attack Speed Multishot Basic Bouncing Defensive Module: Electricity Shell Stone Foundation
Pre-era hardmode

Level #4 (c2-4)

What Do You Get When You Combine Two Bosses And Three Tanks? That's Right. A Half-buried Camel In The Sand.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Tank and Boss	Max. 6 total Modules have to be maxed T3 or above Modules will be set to maxed T3	None	Advanced Heal
Solutions
Pre-era non-hardmode
Import Code: RGVzZXJ0IENoYWxsZW5nZSA0O2dpZnQuZm9yZXN0O2JhcnJpZXIuYWlyO2JhcnJpZXIud2F0ZXI7YmFycmllci5uYXR1cmU7c2hpZWxkLmJhc2ljO2ZvdW5kYXRpb24uZGlhbW9uZA== Modules: Defensive Module: Forest Gift Air Barrier Water Barrier Nature Barrier Basic Shield Diamond Foundation
Pre-era hardmode

Level #5 (c2-5)

A Storm Of Spells And Arrows Is Approaching, Stay Firm And You Will Unlock The Secret Power Of The Desert.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 8 total Max. 2 Max. 2 Max. 2 Max. 2 Modules have to be maxed T4 or above Modules will be set to maxed T4	None	Sandstorm
Solutions
Pre-era non-hardmode
Import Code: RGVzZXJ0IENoYWxsZW5nZSA1O3NwZWxsLmZpcmVzdG9ybTtzcGVsbC5saWZlbGVlY2g7Zm91bmRhdGlvbi5ncmFuaXRlO3NoZWxsLmFpcjtlbmVyZ3kuYmFzaWM7ZW5lcmd5LnJlZ2VuZXJhdGlvbg== Modules: Offensive Modules: FireStorm Lifeleech Defensive Modules: Granite Foundation Air Shell Utility Modules: Energy Energy Regeneration Notes: This take a really long time(14 minutes in in-game time). All you gotta do is spam Life Leech while waiting for the cooldown of Fire Storm to end.
Pre-era hardmode

Level #6 (c2-6)

Those Cacti Are The Remains Of The Assassins Turned Into Plants By The Wizards ...

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 25		Assassin Wizard	Max. 12 total Max. 1 No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies have only 0.1% of their original health Enemy damage is multiplied by 100	Desert Gift
Solutions
Pre-era non-hardmode (credits to Moszuke)
Fire bomb spamming with supports like: energy, energy regeneration and universal shield for tankiness. maybe you can use something to reduce cooldown or reset cooldown etc etc.. but this is the minimum to beat it. (super tower not needed) BLUEPRINT import: Y2hhbGxlbmdlO3NwZWxsLmZpcmVib21iO2VuZXJneS5iYXNpYztlbmVyZ3kucmVnZW5lcmF0aW9uO3NoaWVsZC51bml2ZXJzYWw7dG93ZXIuc3VwZXIuMQ==
Pre-era hardmode

Winter Challenges (Region 3)

Level #1 (c3-1)

The Harsh Cold Greatly Enhances The Resistance To Negative Magic Of All The Creatures In This Region.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 500		Unknown	Max. 10 total Max. 1 Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies cannot be slowed below their base movement speed Enemies have 75% debuff resistance Enemies have 75% stun resistance	+3% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c3-2)

A Blizzard Is An Entertainment By Itself. It Will Really Teach You The Craft Of War.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Unknown	Max. 12 total Max. 6 No Modules have to be maxed T2 or above Modules will be set to maxed T2	Tower starts with 400% increased attack cooldown Map is covered in a snowstorm	Snowstorm
Solutions
Pre-era non-hardmode
Attack focused build with little chance of dying. Offensive: - Rapidfire - Basic Bouncing - Basic Attack - Attack Speed - Darkness Attack - Electricity Attack Defensive: - Air Shell - Water Shell - Water Resistance - Air Resistance - Diamond Foundation - Generic Resistance BLUEPRINT import: ZYxBCsJADEWvUuYAXbi0Sw/hQlykM782dExLkiJSvLsjOFRw99//L9lCn1csyuIWjs0lnEuCNqeRcnPobETOLbF+04PK2CmMzUki/ouPO8yrJHKepU1M91nSr3GDQDl25E5xapUWTgMratGX67gT2e7aAqQKiXQSmFVGRvTymP0Zrq83
Pre-era hardmode

Level #3 (c3-3)

Mind Your Speed In This Challenge. Ice Giants Don't Like Quick Movements.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 350		Unknown	Max. 8 total Modules have to be maxed T3 or above Modules will be set to maxed T3	Tower attacks per second affect enemies base movement speed on spawn Tower attacks per second affect enemies base health regeneration on spawn	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
BLUEPRINT import: PYsxDgIxDAS/EuUBaehIySMoEIUv9hHrTBI5PiF04u+kIHQ7M9rDL7JTUy7W/dnd/HUsUnfJIO4UeyaR8IKh4lr3gmBcS0CGZy34ywi6Feo9ghmkLSg0xpWVpljGM/2pNyKcQELJlBPbeyrhRzZ//3wB
Pre-era hardmode

Level #4 (c3-4)

Looks Like The Enemies Are Coming Straight Out Of Jötunheim. Is There Anything To Stop Them?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 225		Unknown	Max. 18 total Modules have to be maxed T4 or above Modules will be set to maxed T4	Every unit that spawns increases the tower's attack cooldown by 0.001 seconds Base health and damage of enemies is squared	+1% wave acceleration factor for wave streaming per completed challenge
Solutions
Pre-era non-hardmode
Equip Energy, Energy regeneration, Shock ward, Neutral response, Void Use Shock Ward to stun ennemies and avoid being attacked. Pause the game. Use Neutral response to transform all ennemies into neutral. Use Void to instant kill all neutral ennemies. Unpause the game. Wait for cooldowns. Any global, Water and Darkness resistances are welcome. You can use the Basic Shield + Barriers modules combo to deal with early waves.
Pre-era hardmode

Level #5 (c3-5)

Defeat Olaf!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 10 total Modules have to be maxed T5 or above Modules will be set to maxed T5	Olaf!	Mjölnir
Solutions
Pre-era non-hardmode (credits to @miner#2281)
Import Code: RY7RCcMwDERXCR4gAzSjlH4oziURVWQjy4VSunsdgumXdE+64z5hlopsrF7CbbiHJLQOMR1Z4Fgmcqf4HCGIbhzZ3x0peTV0Jbzt3kXJ+Ftb1lyLc9JO5lQ1YlrbWOg8jJuRsrewajTuIPPiKWfYZChcnNr/2eGAOkmDGxR2eQ3SlhfC4/sD Modules: offensive modules: electricity attack nature attack light attack attack speed combustion basic bouncing Defensive Modules: granite foundation heartstopper aura elemental resistance adaptive regeneration Notes: heartstopper aura is the star of the show here. basic bouncing is for speed and combustion might not be needed, i haven't tested it. you don't need granite foundation, diamond should work fine, but stone doesn't have enough base hitpoints to withstand later waves and olaf. this blueprint also worked for c3-2 but is really not optimized for it, I'm sure there are better ways to do it.
Pre-era hardmode

Level #6 (c3-6)

A Dark Ancient Spell Unites Enemies In This Challenge. Better Keep Them Divided.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 8 total Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies gain 1% resistance per enemy on the map (additive) Enemies become invulnerable to almost all damage when 100 enemies are on the map	Winter's Gift
Solutions
Pre-era non-hardmode
One note. DO NOT WAVE STREAM. Import Code: PcwxCsMwDEDRqxTv9VLoUI89RujgSHIiUOQgy4USevdmKB7/G/4RZum0G6u38LhM4Xm73lNbmQRj3nbhwmQD8J0VCNOczU6PJARuDOyfYcLL6qMKG43Q7P3M/61rqYKsS0IqpI0iVMUOXi28vj8=
Pre-era hardmode

Underground Challenges (Region 4)

Level #1 (c4-1)

A Sequence Of Avalanches And Earthquakes Has Awakened The Deep Earth Tanks. Can You Put Them Back To Sleep?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 7 total Max. 3 No Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies divide damage based on the wave they spawned in	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c4-2)

The Tormented Spirits Of Old Miners Will Haunt Your Tower

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 500		Assassin and Tank	Max. 10 total Max. 2 Max. 2 Modules have to be maxed T2 or above Modules will be set to maxed T2	Darkness enemies deal additionally 10% of the tower's current shield and current health on every attack	+3% damage per completed challenge
Solutions
Pre-era non-hardmode (credits to XenoDarth)
Import code: VW5kZXJncm91bmQgQ2hhbGxlbmdlICMyO2ZvdW5kYXRpb24uZGlhbW9uZDtzaGllbGQuYmFzaWM7YmFycmllci5uYXR1cmU7YmFycmllci5saWdodDtzaGVsbC5lYXJ0aDtzaGVsbC5kYXJrbmVzcztyZXNpc3RhbmNlLmFicy5lYXJ0aDtyZXNpc3RhbmNlLmFicy5kYXJrbmVzcw== Modules: Defensive Module Diamond Foundation Basic Shield Nature Barrier Light Barrier Earth Shell Darkness Shell Earth Armor Darkness Armor Notes: Use of the Auto Skip, Wave Streaming, and Wave Surge softwares, obtainable from the Headquarters, are encouraged. You will take ~20-25% damage to your shield at the beginning of the round before gaining enough Darkness Shell buffs to reduce the damage taken to an amount that Darkness Armor can fully nullify. Damage from Earth enemies will already be nullified from the outset. With enough patience (~1 hour of nonaccelerated game time), this can also work in hardmode. And yes, I have tested it in hardmode. Didn't think it'll work. If you have access to era modules, you can also equip Advanced Shield and Shield Amplifier to progress even faster (~4 minutes of nonaccelerated game time in hardmode), as damage from the Barrier modules scale with maximum shieldpoints.
Pre-era hardmode

Level #3 (c4-3)

It Looks Like Those Cave Dwellers Consumed Some Strange Ores Which Hardened Them.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 10 total No No Modules have to be maxed T3 or above Modules will be set to T3	Enemies ONLY take 100% damage from their own element type Enemies are IMMUNE to any other element type damage except for their own	Aftershock
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c4-4)

We Have Found A Deep, Hot Ravine.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 10 total No Modules have to be maxed T4 or above Modules will be set to maxed T4	Destroying fire enemies damages the tower for 33% of its current health as fire damage (ignores shield) Destroying light enemies damages the tower for 33% of its current shield as light damage Destroying earth enemies reduces the current energy of the tower by 33%	Tremors
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c4-5)

We've Breached The Wall Of A Chamber Filled With Toxic Organic Life.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 15 total Max. 4 No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies apply poison when attacking Poison reduces nature resistance and deals damage based on max. hp Higher stacks of poison are more potent	Poison Sting
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c4-6)

The Archers And Wizards Of The Deep Dark Found An Ancient Technique To Cloak Themselves.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 75		Unknown	Max. 8 total Max. 3 Max. 3 Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies are invisible and untargetable Enemies become visible and targetable for 0.25 sec. after attacking	Underground gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Volcano Challenges (Region 5)

Level #1 (c5-1)

The Shells Of These Magma Entities Seem Impervious. Can You Survive Them Or Find Other Means To Defeat Them Until They Cool Off?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 50		Unknown	Max. 10 total Max. 1 Max. 1 Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies spawn with 1e100 generic armor Enemies start with negative health regeneration Enemies deal 1000 times more damage than normaly	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c5-2)

We Have Reached The Molten Core. It Seems Like We Require Water To Proceed.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 12 total Max. 5 Max. 2 Modules have to be maxed T2 or above Modules will be set to maxed T2	Enemies can only be damaged by using water or any module that ignores their element Enemies ignore elemental damage amplification/reduction from the element grid when attacking	Molten Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c5-3)

We Cannot Take Our Upgraded Modules Into These Lower Sections Of The Volcano.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 12 total Max. 4 Modules have to be maxed T3 or above Modules will be set to T3	You cannot use gems to upgrade modules Enemies spawn with 1e100 universal, fire, nature, darkness and universal armor Enemies have 75% debuff resistance	+3% damage per completed challenge
Solutions
Pre-era non-hardmode (credits to RookieError)
Standard type boosted attacks, atk speed modules, and resistance work well. Upgrade path attack speed like multishot and bounce first. Damage as necessary. Basic shield upgrades when low on shield. XP boost from Dyson Sphere makes this a cake walk. Leveling modules from 0 means don't skip waves as you won't get the XP for upgrades. Air Attack, Nature Attack, Water Attack, Attack Speed, Basic Bouncing, Multishot, Critical Strike, Rapidfire, Diamond Foundation, Steel foundation, basic Shield, Simple Evasion BLUEPRINT import: ZmlyZSBjaGFsbGVuZ2UgMzthdHRhY2suYWlyO2F0dGFjay5uYXR1cmU7YXR0YWNrLndhdGVyO2F0dGFjay5zcGVlZDthdHRhY2suYm91bmNlO2F0dGFjay5tdWx0aXNob3Q7Y3JpdC5iYXNpYzthdHRhY2sucmFwaWRmaXJlO2ZvdW5kYXRpb24uZGlhbW9uZDtmb3VuZGF0aW9uLnN0ZWVsO3NoaWVsZC5iYXNpYztldmFzaW9uLmJhc2lj
Pre-era hardmode

Level #4 (c5-4)

The Enemies In This Section Have Developed A Really Strong Shield.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 20 total Max. 6 Max. 5 Modules have to be maxed T4 or above Modules will be set to maxed T4	Enemies spawn with shield points Shield amount is equal to max. hitpoint raised to the power of 3 Boss units can spawn randomly like regular unit types	Heatwave
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c5-5)

The Volcano Is About To Erupt! Seems Like The Ashes Falling From The Sky Protect The Inhabitants Of This Area.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 15 total Max. 5 Max. 3 Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies are immune to a random element (immunity shows up as resistance when selecting a unit)	Rain of Ashes
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c5-6)

The Pool Of Lava Is Filling Up. Make Sure Not To Overheat Your Tower.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Unknown	Max. 30 total No Modules have to be maxed T5 or above Modules will be set to maxed T5	Everytime a unit spawns or dies the tower loses 25% of its current health, shield and energy Health and shield loss is not considered incoming damage For each module you bring into this challenge the loss amount increases by 2%	Volcano gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

High Mountain Challenges (Region 6)

Level #1 (c6-1)

The High Air Density In This Area Creates A Significant Amount Of Pressure.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 10 total Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies reflect 100% of non-air damage	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c6-2)

Seems Like The Archers In This Area Have Incredibly Sharp Senses.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 8 total No Modules have to be maxed T2 or above Modules will be set to maxed T2	Enemies will have +100% attack range Enemies are immune to fire and darkness damage (immunity shows up as resistance)	Storm Aura
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c6-3)

Their Golems Seem To Be Indestructible Although Short-Lived.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 12 total No Modules have to be maxed T3 or above Modules will be set to maxed T3	Air enemies have 1000% movement speed Air enemies are immune to stuns Earth enemies are immune to all types of damage (immunity shows up as resistance) Earth enemies have negative health regeneration	+3% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c6-4)

Silent As The Wind. Don't Underestimate Them Just Because They Are Slow!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 10 total No No Modules have to be maxed T4 or above Modules will be set to maxed T4	Enemy health is multiplied by 100 Enemy damage is multiplied by 10 DTr (1e100) Enemies move very slowly Enemies are immune to darkness damage (immunity shows up as resistance)	Aero Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c6-5)

Alert The Local Fauna.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 12 total Max. 8 Max. 8 Max. 8 Modules have to be maxed T5 or above Modules will be set to T5 Modules start at level 0	Goats will occasionally roam across the map Goats deal 20% of of the tower's max hp as air damage upon contact	Stampede
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c6-6)

The Low Air Pressure At This Altitude Severely Affects The Target Capabilities Of All Our Devices.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 175		Unknown	Max. 15 total Max. 6 Max. 6 No Modules have to be maxed T5 or above Modules will be set to maxed T5	Area of effect of active, passive and aura modules is reduced by 90% Base attack range of the tower is 3m instead of 18m	High Mountain Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Jungle Challenges (Region 7)

Level #1 (c7-1)

Who Knows What Lurks In The Thicket?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Unknown	Max. 12 total Max. 4 Max. 2 Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies apply poison when attacking Poison reduces attack speed and attack range Higher stacks of poison are more potent	+3% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c7-2)

It Seems Like The Rainy Climate And Humid Temperatures Provide The Perfect Environment For Exceptional Growth.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 14 total Max. 12 Max. 2 No Modules have to be maxed T2 or above Modules will be set to maxed T2	Max. hitpoints and damage of enemies increase over time Enemies regenerate 20% of their max. HP per second	Monsoon Aura
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c7-3)

Never Confuse Venomous With Poisonous!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Unknown	Max. 10 total Modules have to be maxed T3 or above Modules will be set to T3 Modules start at level 0	Enemies are poisonous (not venomous) Attacking enemies inflicts a poison effect on the attacker for each damage instance hitting them Poison deals nature damage based on max. HP and reduces the nature resistance Higher stacks of poison are more potent	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c7-4)

Those Beasts Withstand Anything. We Should Not Make Too Much Noise.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 350		Unknown	Max. 20 total Max. 2 Modules have to be maxed T4 or above Modules will be set to maxed T4	Enemies are immune to debuffs and stuns Enemies spawn with x8 HP and damage for each module inside your blueprint Enemies spawn with 99% generic damage resistance	Gaia's Protection
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c7-5)

Where Is The Coconut?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 18 total Max. 8 Max. 8 Max. 8 Max. 8 Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies are Monkeys Whenever a Monkey dies all other Monkeys gain x10 health and damage	Return to Monkey
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c7-6)

Proof That You Are The King Of The Jungle!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 25 total Max. 15 Max. 10 Modules have to be maxed T5 or above Modules will be set to T5 Modules start at level 0	Enemies spawn with shieldpoints equal to their max. health Enemies regenerate 50% of their max. health per second	Jungle Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Metallic Ruins Challenges (Region 8)

Level #1 (c8-1)

Looks Like We Have To Choose Between Hitting Against Rocks Or Getting Electrocuted ...

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 10 total Modules have to be maxed T1 or above Modules will be set to maxed T1	Earth enemies have a 10% chance to stun an attacker Electricity enemies have a 10% chance to stun their target when attacking Stuns from enemies last up to 10 seconds	+3% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c8-2)

They Are Short-Circuiting All Of Our Machines!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 14 total Modules have to be maxed T2 or above Modules will be set to maxed T2	Killing Electricity enemies increases the cooldown of all active modules by 1% for each Ultimate module in your blueprint (additively with itself)	+5% Factory Producer production per completed challenge (ALL producers)
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c8-3)

The Static In The Air Seems To Cause Some Sort Of Levitation Effect On Projectiles.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 400		Archer	Max. 16 total Max. 3 Modules have to be maxed T3 or above Modules will be set to T3 Modules start at level 0	Archers spawn with an attack range of 100m but with negaitve health regeneration Cooldown of all active modules is doubled	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c8-4)

What Is Going On Here? The Elemental Laws Do Not Apply Here.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 20 total Max. 5 Modules have to be maxed T4 or above Modules will be set to maxed T4	Tier of Special modules is ignored for this challenge All elements are immune to Earth damage All elements deal unlimited damage to Neutral elements	Magnetic Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c8-5)

Our Tech Appears To Be Non-Fuctional In This Particluar Area. How Are We Going To Approach The Issue?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 25 total Modules have to be maxed T5 or above Modules will be set to T5 Modules start at level 0	XP drops are reduced by 99% Enemies are immune to Neutral damage Enemies are immune to Universal damage	Battery Foundation
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c8-6)

This Level Of Engineering Confuses Our Targeting Systems!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 20 total No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies can protect themselves with Gears Enemies need 100 energy to spawn a Gear Enemies with Gears are untargetable for 4 seconds	Metallic Ruins Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Beach Challenges (Region 9)

Level #1 (c9-1)

Low Tide! Where Is The Water?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 350		Unknown	Max. 15 total Max. 5 No No No Modules have to be maxed T1 or above Modules will be set to maxed T1	Fire is immune to Universal and Water Fire is very resistant against Earth and Fire	Low Tide
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c9-2)

High Tide! Too Much Water.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 350		Unknown	Max. 15 total Max. 5 No No No Modules have to be maxed T1 or above Modules will be set to maxed T1	Water is immune to Universal and Fire Water is very resistant against Earth and Water	High Tide
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c9-3)

The Sand Seems To Apply Crustacean-Like Features To Enemies In This Region.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 20 total Max. 10 Max. 2 No No Modules have to be maxed T3 or above Modules will be set to maxed T3	Enemies are immune to Neutral, Universal, Darkness, Light and Fire damage Enemies have a 25% chance per indivitual element-type to spawn with a specific amount of base armor for said element The armor amount equals that current wave raised to the power of 10	+1% Sea Mile generation Factor in the Shipyard per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c9-4)

As The Waves Hit The Basement Of The Tower ... It Starts To Crumble.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 18 total Max. 6 Max. 4 No No Modules have to be maxed T4 or above Modules will be set to maxed T4	Enemies attacking the Tower will redice its generic resistance forever.	Shoreline Boost
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c9-5)

Crabs! Hopefully The Don't Start Dancing.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 175		Unknown	Max. 15 total Max. 5 Max. 5 No No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies spawn with a randomized amount of armor for each element (logarithmically distributed)	Base Shipment count is increased by +100% in formulas involving the shipment count.
Solutions
Pre-era non-hardmode
Diamond foundation, Energy, Energy regeneration, Neutral response, Void Takes some time but with wave surge on it shouldnot take to long
Pre-era hardmode

Level #6 (c9-6)

Whatever Depths They Emerged From Is Not Of Our Concern.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 25 total Max. 1 Modules have to be maxed T5 or above Modules will be set to maxed T5	Destroying enemies has a 10% chance to stun the Tower If the Tower does not get stunned it will be slowed down for 30 seconds The stun and the debuff appear as a positive buff instead of a negative one	Beach Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Ocean Challenges (Region 10)

Level #1 (c10-1)

The Water Pressure Is Immense Down Here.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 15 total No No Modules have to be maxed T1 or above Modules will be set to maxed T1	Health regeneration is disabled Using any active module has a 5% chance to instantly destroy the Tower	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c10-2)

All This Water Really Handicaps Our Performance.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 175		Unknown	Max. 20 total Max. 2 No Modules have to be maxed T2 or above Modules will be set to T2 Modules start at level 0	Gems cannot be used to upgrade modules Base attack range is reduced by 25% Base attack cooldown is increased by 200%	Diver's Shield
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c10-3)

Our Presence Inside This Trench Seems To Make The Local Wildlife More Aggressive.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 15 total No No Modules have to be maxed T3 or above Modules will be set to maxed T3	Enemies deal at least as much damage as the maximum hitpoints of the Tower Enemies spawn with 1 shieldpoint Enemies will fully block the first incoming damage instance if they have more than 0 shieldpoints	+1% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c10-4)

We Have To Ensure To Properly Depressurize The Situation.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 125		Unknown	Max. 25 total No No Modules have to be maxed T4 or above Modules will be set to maxed T4	Base resistance against Water damage is greatly reduced Base attack cooldown increase each enemy that spawns by 5% (multiplicatively) Destroying an enemy removes the attack cooldown increase from that enemy	Aquatic Absorption
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c10-5)

Our Tower Is Heavily Restricted In This Depth. We Should Probably Bring A Good Shield To The Party ...

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 24 total Max. 4 Max. 4 Modules have to be maxed T5 or above Modules will be set to maxed T5	Tower max. HP are locked at 1 Tower attack range is locked at 10m Tower max. energy is capped at 100	Ocean Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c10-6)

This Particular Section Of The Ocean Has A Strange Effect On Our Blueprint Compatibility.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 15 total No No Modules have to be maxed T5 or above Modules will be set to maxed T5	All damage against Neutral types is multiplied by 10 DTr (1e100) Neutral damage is multiplied by x0 against all other element types Special modules can be used in this challenge regardless of their level/tier	Ocean Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Neutral Challenges (Region 11)

Level #1 (c11-1)

This Is Very Neutral.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 10 total No No No No Modules have to be maxed T1 or above Modules will be set to maxed T1	All elements deal 0 damage against Neutral except for Neutral	+1% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c11-2)

This Is Even More Neutral.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 10 total No No No No Modules have to be maxed T2 or above Modules will be set to maxed T2	Each equipped module not containing a #NEUTRAL tag decreases attack range by 10% Each equipped module not containing a #NEUTRAL tag increases attack cooldown by 25%	Anti-Neutral Crit
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c11-3)

This Appears To Be Less Neutral.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 10 total No No No No Modules have to be maxed T3 or above Modules will be set to maxed T3	All elements deal 0 damage against Neutral except for Neutral Whenever an enemy gets destroyed a random element will become +1% (additive) more effective against Neutral but Neutral will become 2% less effective against Neutral (multiplicative)	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c11-4)

Now This Is Some Contrast.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 20 total No No No No Modules have to be maxed T4 or above Modules will be set to maxed T4	Destroying Universal enemies triggers a spawn tick full of Neutral enemies The additional spawn tick is not bound to the maximum unit limit	Neutral Burst Neutral Block
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c11-5)

This Requires Pure Neutral Strength.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 20 total No No No No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies are immune to any type of reflect damage	Neutral Taste Neutral Resistance
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c11-6)

Completing This Will Put Us Into A True Neutral State.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 20 total No No No No Modules have to be maxed T5 or above Modules will be set to maxed T5	Neutral damage heals Neutral enemies Universal damage heals Universal enemies Enemies are immune to any type of reflect damage Destroying Universal enemies triggers a spawn tick full of Neutral enemies if there is at least 1 remaining unit on the map The additional spawn tick is not bound to the maximum unit limit	Neutral Gift
Solutions
Pre-era non-hardmode
{For jacob. I used diamond foundation fiery aura heartstopper aura
Pre-era hardmode

Dark Realm Challenges (Region 12)

Level #1 (c12-1)

This Realm Is Void Of Any Light.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 15 total Max. 5 Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies are immune to Darkness, Neutral and Universal damage Enemies deal 75% of the Tower's max. HP as additional Darkness damage	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #2 (c12-2)

Pure Darkness Seems To Provide Some Defensive Properties.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 225		Unknown	Max. 20 total No Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies only start taking damage after the 7th hit Only damage instances dealing more than 0 damage are counted as hits	Unholy Cloak
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #3 (c12-3)

Directly Executing Them Won't Work.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 12 total No No Modules have to be maxed T3 or above Modules will be set to maxed T3	Enemies are immune to damage instances that exceed their max. health	+1% damage per completed challenge
Solutions
Pre-era non-hardmode
Anything with percent damage and or splash.
Pre-era hardmode

Level #4 (c12-4)

Darkness Is The Most Cursed Element.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 20 total Max. 4 Max. 4 No No Modules have to be maxed T4 or above Modules will be set to maxed T4	When enemies attack they apply a stacking curse on their target After the curse reaches 100 stacks the target will instantly die Enemies spawn with shield equal to their max. health	Grim Reaper
Solutions
Pre-era non-hardmode by The roan
colspan="6" VY1BCsMwDAS/UvwAQ3usn1J6UGzFFVFlY8mEUvr3OoEccllmFpb9uok71kZi6u6Xh4svYEbJqGEuXRIYFfGJ4F0kBRRs+eMnUIqHzFzWgxvmjfZRsLJi89rryOvJbkErMvvMEGlrKy3jEMwgLsMQk3v+/g== Offensive: Attack speed Defensive: Diamond foundation Utility: Energy Energy flow Energy regeneration Ultimate: Super tower Super tower 2 Glacier spikes
Pre-era hardmode

Level #5 (c12-5)

Unholy Deals In This Realm Seem To Provide Enhanced Powers.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 25 total Max. 5 No No Modules have to be maxed T5 or above Modules will be set to maxed T5	Earth enemies are immune to all elements except Earth Darkness elements spawn with shieldpoints equal to their max. healthpoints Water enemies are immune to Earth damage and move incredibly fast	Soul Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c12-6)

The Heart Of Darkness Lies Before Us. They Shall Not Pass!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 120		Unknown	Max. 20 total No No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies have 100% debuff duration reduction Destroying an enemy divides the current hitpoints of the Tower by the max. hitpoints of the enemy	Dark Realm Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Heaven Challenges (Region 13)

Level #1 (c13-1)

It Seems Like The Light Elementals Can Fully Unleash Their Power In This Realm.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 200		Unknown	Max. 20 total Max. 3 Max. 3 Modules have to be maxed T1 or above Modules will be set to maxed T1	Destroying a Light enemy fully heals all other units on the map and increases their base max. health by 5% (multiplicatively)	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
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Pre-era hardmode

Level #2 (c13-2)

Blessings Of The Sky Provide Immense Defensive Capabilities.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 18 total Max. 5 Max. 1 Modules have to be maxed T2 or above Modules will be set to maxed T2	Enemies cannot take more than 20% of their max. health as damage Enemies have a 25% chance to heal 50% of their max. health whenever taking non-Light damage.	Sky Blessing
Solutions
Pre-era non-hardmode
Import Code: PU9LbsQwCL1KlQP4AONlj1F1QWIcIzHYAjzVqOrdSzpJd/B+8L6XlScOJXFbbm8fy3sDZpQds4BPxTRa925P8YZGlhUr4+bpi2TDbI2QS5pSOxeSPVcKS1AkqODUJZsHnkYni2VlNDv2Qo+Q5NqnlD9dMu/yH7iC0Ra3drxyTgimQmoI6qEfA/WFFH1KJF/21+u5YEUxTOfPFwv3wVQpvHpUcogmCRnvKA4cKmROQHpOTHvzvIJqWNJRcPn8+QU=
Pre-era hardmode

Level #3 (c13-3)

They Seem To Absorb High Levels Of Energy From Their Surroundings.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 300		Unknown	Max. 28 total No Modules have to be maxed T3 or above Modules will be set to maxed T3	Enemies spawn with Generic Armor equal to the Tower's max. health multiplied with its max. energy Enemies have 100% resistance against Light, Nature, Fire and Electricity damage.	+1% damage per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #4 (c13-4)

Not Even Heaven Is Devoid Of Darkness.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 15 total Max. 3 No Modules have to be maxed T4 or above Modules will be set to maxed T4	All elements except for Darkness and Light deal /1000000 damage Light enemies have very high Darkness Armor Darkness enemies have very high Light Armor Light enemies that get destroyed will turn into Darkness enemies Darkness enemies that were Light enemies before move slower	+1% Arcade Token reward factor per completed challenge
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #5 (c13-5)

Light Enemies Seem To Take On The Roles Of Protector In Their Natural Habitat.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 175		Unknown	Max. 25 total Max. 1 Modules have to be maxed T5 or above Modules will be set to maxed T5	Light enemies provide a massive Generic Armor boost to nearby non-Light enemies	Angelic Core
Solutions
Pre-era non-hardmode
Pre-era hardmode

Level #6 (c13-6)

Energy Seems To Lead To A Disadvantage Here.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 225		Unknown	Max. 30 total No Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies divide their target's current health and shield by their target's amount of missing energy	Heaven Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Universe Challenges (Region 14)

Level #1 (c14-1)

Where Are The Universals Coming From? Why Does The Universe Grant Them So Much Power?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 60		Unknown	Max. 25 total Max. 3 Modules have to be maxed T1 or above Modules will be set to maxed T1	Universal enemies are immune to all elements except for Neutral and Universal Immunity is applied as inherit elemental resistance instead of regular resistance Destroying an enemy subtracts the max. health of that enemy from the Tower's base armor of the enemy's element	+1% resistance per completed challenge
Solutions
Pre-era non-hardmode
Just a lot of attack I couldnt do it with wave streaming but it only takes like 2 minutes anyway VY4xCsMwDEWvYnKAHKCZAi1dSgpdOpQOiq1gEcc2lpwOpXevFlM6CPSkr6//7uZQMReKwt3BPLpxOt5O98v1PE6G2IhHMyPLACJg134GJtugRtqxMIQ24IzoBltI/oUKvvVbDULs088y1WixUYFMbqGCA+egZz24HXTvmsAhiH+pw8CCFKm3Hiii0ydBg2w50EJY+ohVikaTlMKqgbS65+cL
Pre-era hardmode

Level #2 (c14-2)

The Gravity Is Really Strong In This Area.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 150		Unknown	Max. 25 total No No Modules have to be maxed T2 or above Modules will be set to maxed T2	The Tower attacks 50 times slower Enemies move 2 times slower All enemies have 100% resistance against Light and Darkness damage.	Universal Crit Anti-Universal Crit
Solutions
Pre-era non-hardmode
This still works add resistence. hp. hp regen. as needed. q1ZKyilNLSjKzCspVrJSiFZy9HMJcg338Xd39FPILFYoyUhVSEotLrFOyy/NS0ksyczP00vJTMzNz0uxTiwtStRLy0wtqoQwM1ITi0qKS/ILClKLkNXnJqbnJirF1gIA
Pre-era hardmode

Level #3 (c14-3)

We Have To Be Quick Before The Tower Gets Crushed Under The Weight Of Those Universals.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 225		Unknown	Max. 30 total Max. 4 Max. 10 Modules have to be maxed T3 or above Modules will be set to maxed T3	The damage multiplier attribute of a random element gets multiplied by 0.95 whenever the Tower receives damage Attack range of enemies is doubled	+1% damage per completed challenge
Solutions
Pre-era non-hardmode
Heartstop aura and fiery aura seem to still work even with -99% resesistences q1ZKyilNLSjKzCspVrJSiFZy9HMJcg338Xd39FPILFYoyUhVSEotLrFOyy/NS0ksyczP00vJTMzNz0uxTiwtStRLy0wtqoQwM1ITi0qKS/ILClKLkNXnJqbnJirF1gIA
Pre-era hardmode

Level #4 (c14-4)

Seems Like Universals Dislike The Use Of Active Modules.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 30 total Max. 10 Max. 4 Modules have to be maxed T4 or above Modules will be set to maxed T4	The cooldown of all active modules increases by 25% (additive) everytime the Tower uses an active module All enemies currently on the map recieve 100% resistance against a random element everytime the Tower uses an active module	Universal Burst Universal Block
Solutions
Pre-era non-hardmode
I like heartsop aura fiery aura combo what can I say if needed just add regen/resistence Vc09CsJAEMXxqyx7gBzArQKKjUSwsZAUE/clu7AfYWYiiHh3lVho9+NfvPewQ1owcywqdmMutu22p935cNy3nYliNMAMEHVjXYonjbU0PlKuxTtamJoxgu8rA4hVtM4z2DEkilK5ovnk4CQgpa8ZEwp4nWOkN274vcg0ZfoPPCTY/vkC
Pre-era hardmode

Level #5 (c14-5)

This Sounds Way Too Easy Or Way Too Hard At The Same Time.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 120		Unknown	Max. 25 total Max. 3 Modules have to be maxed T5 or above Modules will be set to T5 Modules start at level 0	Gems cannot be used to upgrade modules XP drop rate is x125 higher Tier of Utility modules is ignored for this challenge	Universal Resistance
Solutions
Pre-era non-hardmode
I beat it with diamond foundation hearstop aura fiery aura Made me realize how busted diamond foundation is.c
Pre-era hardmode

Level #6 (c14-6)

The Lack Of Any Tricky Rules Is Unnerving.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 25 total Modules have to be maxed T5 or above Modules will be set to maxed T5	Tier of Special modules is ignored for this challenge Tier of Utility modules is ignored for this challenge Enemies are immune to reflect damage	Universe Gift
Solutions
Pre-era non-hardmode
Pre-era hardmode

Chaos Challenges (Region 15)

Level #1 (c15-1)

We Can't Even See Them!

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 50		Unknown	Max. 30 total Max. 1 Modules have to be maxed T1 or above Modules will be set to maxed T1	Enemies are "faster than light" (We need something to slow down time itself.)	+3% Generic damage per completed challenge
Solutions
Pre-era non-hardmode
I dislike this one. Use really anything that can survive I found that fiery aura plus magma foundation led to me not being touched the trick to this one is you need absolute zero. It is a module found in the freeze experiment as the last mmodule you can earn. Also turn off any speed modifiers either X2 or X3. It makes no sense but if you dont you instantly die.
Pre-era hardmode

Level #2 (c15-2)

Retaliate Without Mercy.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 500		Unknown	Max. 2 total Modules have to be maxed T2 or above Modules will be set to maxed T2	Enemies deal maximum damage Enemies have maximum armor	Crate of Rex
Solutions
Pre-era non-hardmode
Main reason I created an account and started editing the wiki. Modules I used are universal shield and reflect I havnt found anything else that works yet this also works for hard mode.
Pre-era hardmode
Main reason I created an account and started editing the wiki. Modules I used are universal shield and reflect I havnt found anything else that works yet this also works for hard mode.

Level #3 (c15-3)

The Ultimate Test For Our Armor.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 30 total Modules have to be maxed T3 or above Modules will be set to maxed T3	Enemies are immune to reflect damage Enemies are immune to stuns Being attacked decreases the Tower's base armor of the enemies element by a factor of 10 (first hit will set the base armor to -1, armor gained from modules is not considered base armor)	+1% Generic resistance per completed challenge
Solutions
Pre-era non-hardmode
Just used the same modules I used for c15-4 Main point is to use heartstop aura and fiery aura for damage VY8xTsQwEEWvEuUArqhwtQJEgxaJZgtEMbZ/HEvO2Bo7QRHi7phll026mTf6+m++ehNnZAlcS3/fvfcPI6XS3XVm7Q7Hx7en08vr8+GowRC/KkMl2Osi8L8T1ZD4xuxqY2CvaRZSQ4Csf+MIklpqyhmihzSzOwdVQ4wtcIGmxE6XjBgVuYXYwrV41NvGi0sZA6JTTHUWaCwN/t8cBnBBqyCTBQv4rLrp8kIcKvY+QLxFR8S6F57IT7QHYiKuJnls3e1/S1Xl9Nmyl8PMYYEUiv3H9w8=
Pre-era hardmode

Level #4 (c15-4)

Is This Even Possible?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 30 total Modules have to be maxed T4 or above Modules will be set to maxed T4	Enemies are immune to reflect damage Enemies reflect 100% of incoming damage as pure damage	Captain's Reflect
Solutions
Pre-era non-hardmode
Use heartstopper aura and or fiery aura along with as much modules that do one of the following. Add hp. Add hp regen. Block incoming damage. Be aware anything that adds resistence or only blocks certain elements or will not work. VY8xTsQwEEWvEuUArqhwtQJEgxaJZgtEMbZ/HEvO2Bo7QRHi7phll026mTf6+m++ehNnZAlcS3/fvfcPI6XS3XVm7Q7Hx7en08vr8+GowRC/KkMl2Osi8L8T1ZD4xuxqY2CvaRZSQ4Csf+MIklpqyhmihzSzOwdVQ4wtcIGmxE6XjBgVuYXYwrV41NvGi0sZA6JTTHUWaCwN/t8cBnBBqyCTBQv4rLrp8kIcKvY+QLxFR8S6F57IT7QHYiKuJnls3e1/S1Xl9Nmyl8PMYYEUiv3H9w8=
Pre-era hardmode

Level #5 (c15-5)

Seems Like We Can Use Most Active Modules Only Once?

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 100		Unknown	Max. 30 total Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies are immune to reflect damage Enemies are immune to overkill damage Active modules have infinite cooldown after being used	Something
Solutions
Pre-era non-hardmode
I just added some stuff from my modules used on 6-5. If you are dying you can also just add as much resistence as possible and use heartstop aura and or fiery aura to complete it slower VY1BasQwDEWvEnIAL7sYr4Zue4NhFoqljEUd2UhyhjD07mMogXb5Hvz3X/NSOjVlcZsv023+zFBt+piWY7oKKj2/6gMkgjuk77CAcTrBGhHGpOz//VK7JDpp68XZcvVTdOGd1KBEawUsB8AdxgCjObFwSBlYCEe0lHOk0BhXVorrqCM4VwnIsFXBv8q8yrjuCiETqA9ujfTXrEx6zPefNw==
Pre-era hardmode

Level #6 (c15-6)

This Is The End Of The Road When It Comes To Challenges. Time To Show What You Are Made Of.

Goal	Elements	Enemy Types	Module Rules	Special Rules	Reward
Wave 250		Unknown	Max. 30 total Modules have to be maxed T5 or above Modules will be set to maxed T5	Enemies mimic all the modules inside your blueprint	Chaos Gift
Solutions
Pre-era non-hardmode by megas_mrc
use this code Y2hhb3MgNiBieSBNZWdhc19NUkM7YXR0YWNrLmJhc2ljO2F0dGFjay5zcGVlZDtjcml0LmJhc2ljO2F0dGFjay5saWZlc3RlYWw7YXR0YWNrLmJvdW5jZTthdHRhY2subXVsdGlzaG90O2F0dGFjay51bml2ZXJzYWw7Zm91bmRhdGlvbi5kaWFtb25kO2ZvdW5kYXRpb24uc3RvbmU= I found above code got stuck on the last wave in an infinite cycle. Removed Lifesteel and added hearstop aura. VcwxDsIwDIXhq0Q5QEcGOiFWboAYnMRQi9SObAeEEHenSyQY/09P7x1T7diU2C3uwzkeFxALu5Be4cBF8XmSG/AM7pDvUwKjPMIaYpmzkv97ks4ZR629OtkiPqAzPVAN6nzdhgWchKdCsAqXXzIX3l66wrQgqG/dGmq8fL4=
Pre-era hardmode