100Gold to build
770Gold to level IV
4-5Damage at IV
AverageRange at IV
At level IV the tower menu offers three skills, each with three levels bought with gold during the battle. The Ultimate is not bought in battle: the last upgrade of the tower's tree in the Upgrades room switches it on for every tower of that type.
Tower facts
Tower type
Damage type
Unlock
Build cost
Cost to level IV
All skill levels
Ultimate
Selling
Ratings
Same tower type
- Royal Catapult
Artillery tower
- Dwarven Culverin
Artillery tower
- Ironbark Treant
Artillery tower
Levels
Alchemist Shack I
Build 100 goldDamage 1-2 true · Fire rate Average (3.74 s) · Range Average (160)
Alchemist Shack II
Upgrade 150 goldDamage 2-3 true · Fire rate Average (3.74 s) · Range Average (160)
Alchemist Shack III
Upgrade 220 goldDamage 3-4 true · Fire rate Average (3.74 s) · Range Average (160)
Alchemist Shack IV
Upgrade 300 goldDamage 4-5 true · Fire rate Average (3.74 s) · Range Average (160)
Skills
Sticky Spillage I
100 goldCooldown 15 sThe cauldron overflows and spills its contents, reducing the speed of affected enemies by 40% for 5 seconds.
Sticky Spillage II
100 goldCooldown 15 sThe cauldron overflows and spills its contents, reducing the speed of affected enemies by 55% for 6 seconds.
Sticky Spillage III
100 goldCooldown 15 sThe cauldron overflows and spills its contents, reducing the speed of affected enemies by 70% for 7 seconds.
Test Subject I
150 goldCooldown 22 sSummons an assistant that turns into a brute with 150 HP and no armor, dealing 16-24 true damage every 1.5 seconds. It lasts 30 seconds or until killed; 22 seconds after it is gone the tower summons it again once an enemy is within 250.
Test Subject II
150 goldCooldown 22 sSummons an assistant that turns into a brute with 180 HP and no armor, dealing 32-48 true damage every 1.5 seconds. It lasts 30 seconds or until killed; 22 seconds after it is gone the tower summons it again once an enemy is within 250.
Test Subject III
150 goldCooldown 22 sSummons an assistant that turns into a brute with 210 HP and no armor, dealing 64-96 true damage every 1.5 seconds. It lasts 30 seconds or until killed; 22 seconds after it is gone the tower summons it again once an enemy is within 250.
Perfected Formula I
200 goldAdds 10-16 explosive damage on impact to the tower's basic attacks and increases damage over time to 5-7.
Perfected Formula II
200 goldAdds 28-46 explosive damage on impact to the tower's basic attacks and increases damage over time to 6-8.
Perfected Formula III
200 goldAdds 46-68 explosive damage on impact to the tower's basic attacks and increases damage over time to 7-9.
Ultimate
Magnum Opus
Ultimate Destruction: 5 pointsCooldown 40 sThrows a flask at ground enemies within 160 whose combined health is 300 to 600, never bosses or mini bosses; those within 80 of where it lands become gold statues for 15 seconds. A statue keeps the enemy's health and yields its gold plus 15 when destroyed; any left then turn back into enemies.
Upgrades room
Heavy Load
1 pointIncreases the area of artillery attacks by 10%.
Concentrated Fire
2 pointsIncreases artillery base damage by 10%.
Optimization
3 pointsGame text: "Increases artilleries' attack speed by 10%." In battle, only the Alchemist Shack (3.74 to 3.65 seconds between throws) and the planted Ironbark Treant (4.03 to 3.73 seconds between hits) attack faster. The Royal Catapult and Dwarven Culverin keep their animation-set pace.
Shrapnel
3 pointsGame text: "Artillery attacks now ignore 75% of enemies' armor." On the Alchemist Shack it changes only the Perfected Formula blast: the basic attack deals true damage, which armor never reduces.
Concussive Blast
3 pointsGame text: "Artillery attacks stun enemies for a brief moment." In battle, the basic attacks of the four artillery towers (the Ironbark Treant planted or uprooted) and the Perfected Formula blast stun enemies for 0.25 seconds; bosses are not stunned.
Deadly Precision
3 pointsIncreases artillery basic attack range by 10% and damage at the center by 15%.
Ultimate Destruction
5 pointsUnlocks Ultimate ability for all artillery towers.
- Artillery tree in the Upgrades room
All 4 Artillery towers share these upgrades.


