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KR6 Guide
Alchemist Shack, official art

Alchemist Shack

The Alchemist Shack is an artillery tower that deals true damage, unlocked at 46 stars on Steam and sold separately on mobile.

Line
artillery
On Steam
Unlocks at 46
On mobile
Sold as an in-app purchase
Gold
100 gold to build, 770 gold to reach level IV

In Ironhide’s words

Valardul alchemists have their own way of fighting, using potions and tonics to hinder and hurt enemies.

Levels I to IV

LevelCostDamageAttack everyRange
I1001-20.94 s160
II1502-30.94 s160
III2203-40.94 s160
IV3004-50.94 s160

Reaching level IV costs 770 gold in total; buying every skill level on top costs 1,350 gold. Selling returns 60% of gold spent; 100% before the first wave.

Level IV skills and ultimate

At level IV the Alchemist Shack opens 3 skills bought with gold during the battle, and the ultimate Magnum Opus from the Upgrades room.

Sticky Spillage

  1. L1The cauldron boils over and spills out, slowing affected enemies by 40% for 5 seconds.100 gold · 15 s cooldown
  2. L2The cauldron boils over and spills out, slowing affected enemies by 55% for 6 seconds.100 gold · 15 s cooldown
  3. L3The cauldron boils over and spills out, slowing affected enemies by 70% for 7 seconds.100 gold · 15 s cooldown

Test Subject

  1. L1Calls forth an assistant that becomes an armorless brute with 150 HP, hitting for 16-24 true damage every 1.5 seconds. It remains for 30 seconds or until defeated, and 22 seconds after it disappears, the tower brings it back as soon as an enemy comes within 250.150 gold · 22 s cooldown
  2. L2Calls forth an assistant that becomes an armorless brute with 180 HP, hitting for 32-48 true damage every 1.5 seconds. It remains for 30 seconds or until defeated, and 22 seconds after it disappears, the tower brings it back as soon as an enemy comes within 250.150 gold · 22 s cooldown
  3. L3Calls forth an assistant that becomes an armorless brute with 210 HP, hitting for 64-96 true damage every 1.5 seconds. It remains for 30 seconds or until defeated, and 22 seconds after it disappears, the tower brings it back as soon as an enemy comes within 250.150 gold · 22 s cooldown

Perfected Formula

  1. L1The tower's basic attacks gain 10-16 explosive damage on impact, and its damage-over-time effect rises to 5-7.200 gold
  2. L2The tower's basic attacks gain 28-46 explosive damage on impact, and its damage-over-time effect rises to 6-8.200 gold
  3. L3The tower's basic attacks gain 46-68 explosive damage on impact, and its damage-over-time effect rises to 7-9.200 gold

Magnum Opus Ultimate

Hurls a flask at a group of ground enemies within 160 with combined health between 300 and 600, excluding bosses and mini bosses; those within 80 of the impact turn into gold statues for 15 seconds. A statue retains the enemy's health and pays out its gold plus 15 upon destruction; any statues that survive revert back into enemies.40 s cooldown

Unlocked by Ultimate Destruction (5 points, Upgrades room).

Other artillery towers

In Classic Rush this slot goes back to the first game’s artillery line instead: Dwarven Bombardier, Dwarven Artillery, Dwarven Howitzer, then Tesla x104 or Big Bertha at level 4.

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