Build & Kill LabUnofficial field database Play on Roblox ↗
Evidence checked · September 14, 2026Place ID 105011592530400 · Fan-made, independent
Independent data lab

Build and Kill Zombies skills tree

All 13 named nodes visible in the captured tree, with exact hover effects and only the costs that were actually shown.

Current answerThe observed tree includes 13 named nodes: two Support-slot upgrades, five Luck upgrades, Gold Roll unlock plus three interval upgrades, Rainbow Roll unlock and Start.
Build and Kill Zombies skills tree overview
Gameplay captureCaptured skill tree overview. Black question-mark nodes remain unnamed until their prerequisite is unlocked.

Every observed skill node

SkillHover effectDisplayed costEvidence
StartYour journey begins here.Not visible in captured hoverObserved
More Support I2 Total Support SlotsNot visible in captured hoverObserved
More Support II3 Total Support Slots3.70KObserved
Luck I+10% LuckNot visible in captured hoverObserved
Luck II+20% LuckNot visible in captured hoverObserved
Luck III+35% LuckNot visible in captured hoverObserved
Pro Luck I+50% LuckNot visible in captured hoverObserved
Pro Luck II+100% Luck2.50KObserved
Unlock Gold RollEach 20 rolls you get a gold roll with 5x luck boost.Not visible in captured hoverObserved
Gold Roll IGet a gold roll each 18 rollsNot visible in captured hoverObserved
Gold Roll IIGet a gold roll each 17 rollsNot visible in captured hoverObserved
Gold Roll IIIGet a gold roll each 16 rolls3.40KObserved
Unlock Rainbow RollEach 20 rolls you get a rainbow roll with 25x luck boost.7.50KObserved
Cost currency remains unnamed

The hover cards show an orange currency icon and values for some nodes. Because no captured label names that currency, this page reports “displayed cost” instead of calling it cash or Robux.

What the branches do

SUP

Support slots

More Support I shows 2 total slots. More Support II shows 3 total slots and a visible 3.70K cost.

LCK

Luck

Luck I–III show +10%, +20% and +35%. Pro Luck I–II show +50% and +100%.

ROL

Special rolls

Gold Roll is described as a 5× luck boost; Rainbow Roll is described as a 25× luck boost.

More Support II hover card showing three total Support slots and a 3.70K cost
Gameplay captureMore Support II: 3 total Support slots; 3.70K displayed cost.
Pro Luck II hover card showing plus 100 percent Luck and a 2.50K cost
Gameplay capturePro Luck II: +100% Luck; 2.50K displayed cost.
How many Support slots can the captured tree unlock?
More Support II states 3 Total Support Slots.
What does Gold Roll do?
Unlock Gold Roll says every 20 rolls grants a gold roll with a 5× luck boost; later nodes reduce the interval to 18, 17 and 16 rolls.
What does Rainbow Roll do?
The captured Unlock Rainbow Roll card says every 20 rolls grants a rainbow roll with a 25× luck boost.