Skill Tree
Skill points come from defeated bosses and level up your profile between runs. Each rank costs one point; right-click refunds in the game.
Tower Upgrades
Gun · 2Second upgrade for Gun tower, increases base damage, range and rate of firePlayer level 2
Gun · 3Third upgrade for Gun tower, increases base damage, range and rate of firePlayer level 35
Cannon · 2Second upgrade for Cannon tower, increases base damage, range and rate of firePlayer level 5
Cannon · 3Third upgrade for Cannon tower, increases base damage, range and rate of firePlayer level 40
Missile · 2Second upgrade for Missile tower, increases base damage, range and rate of firePlayer level 8
Missile · 3Third upgrade for Missile tower, increases base damage, range and rate of firePlayer level 45
Machine Gun · 2Second upgrade for Machine gun tower, increases base damage, range and rate of firePlayer level 10
Machine Gun · 3Third upgrade for Machine gun tower, increases base damage, range and rate of firePlayer level 40
Flame · 2Second upgrade for Flame gun tower, increases base damage, range and rate of firePlayer level 12
Flame · 3Third upgrade for Flame gun tower, increases base damage, range and rate of firePlayer level 24
Burn DamageIncreases burn damage in 25%+25% per rank · Ranks 5Player level 25
Burn DurationIncreases burn time in 10%+10% per rank · Ranks 5Player level 25
Bolt · 2Second upgrade for Bolt tower, increases base damage, range and rate of firePlayer level 16
Bolt · 3Third upgrade for Bolt tower, increases base damage, range and rate of firePlayer level 28
Stun DurationIncreases stun time in 0.10 seconds+10% per rank · Ranks 5Player level 25
Frost · 2Second upgrade for Frost tower, increases base damage, range and rate of firePlayer level 14
Frost · 3Third upgrade for Frost tower, increases base damage, range and rate of firePlayer level 26
Freeze DurationIncreases slow time in 1 second+10% per rank · Ranks 5Player level 25
Laser · 2Second upgrade for Laser tower, increases base damage, range and rate of firePlayer level 18
Laser · 3Third upgrade for Laser tower, increases base damage, range and rate of firePlayer level 30
Bleed DamageIncreases bleed damage in 25%+25% per rank · Ranks 5Player level 25
Bleed DurationIncreases bleed time in 10%+10% per rank · Ranks 5Player level 25
Poison · 2Second upgrade for poison tower, increases base damage, range and rate of firePlayer level 20
Poison · 3Third upgrade for poison gun tower, increases base damage, range and rate of firePlayer level 34
Poison DamageIncreases poison damage in 25%+25% per rank · Ranks 5Player level 25
Poison DurationIncreases poison time in 10%+10% per rank · Ranks 5Player level 25
Collector · 2Second upgrade for Collect tower, increases collection speedPlayer level 10
Collector · 3Third upgrade for Collect tower, increases collection speedPlayer level 20
Global Bonuses
DamageIncreases damage in 5%+5% per rank · Ranks 10Player level 1
Critical ChanceIncreases critical chance in 4%+4% per rank · Ranks 8Player level 30
Critical DamageIncreases critical damage in 6%+6% per rank · Ranks 8Player level 30
Rate of FireIncreases all towers rate of fire in 3%+3% per rank · Ranks 5Player level 1
RangeIncreases all towers range in 3%+3% per rank · Ranks 5Player level 1
AccuracyIncreases projectile tower accuracy by 5%+5% per rank · Ranks 5Player level 1
Gold per Kill+5% gold per kill and +5 starting gold, per point.+5% per rank · Ranks 5Player level 1
Rerolls+1 max reroll per wave+1 per rank · Ranks 2Player level 10
Extra Cards+1 card at end of wave+1 per rank · Ranks 2Player level 15
Cockpit duration+5s of cockpit per wave+5 s per rank · Ranks 3Player level 20- Cockpit damage+25% damage in the cockpit+25% per rank · Ranks 3Player level 20
Strategy+Save one more strategy, up to three, and choose which one a run usesRanks 2Player level 25
Building Upgrades
wall · 2Second upgrade for the wall, increases health and damagePlayer level 30
wall · 3Third upgrade for the wall, increases health and damagePlayer level 50
Factory · 2Second upgrade for the Factory, raises the limit to 14 belts, 3 splitters and 6 assemblersPlayer level 15
Factory · 3Third upgrade for the Factory, raises the limit to 24 belts, 5 splitters and 10 assemblersPlayer level 30
Radar · 2Second upgrade for the Radar, reveals 66% of the enemy pathPlayer level 15- Radar · 3Third upgrade for the Radar, reveals the whole enemy pathPlayer level 30