Zombie perks
Every zombie worker has its own talent trees, one per mastery, with 49 perks between them.
Zombies49
4917 nodes: 10 zombie perks and 7 mastery upgrades worth +9 Building mastery in total. The whole tree costs one zombie 2,800 red tech points.
Red tech points
50
Tier 1
Building mastery +1+1
Mastery upgrade
Raises Building mastery by 1.
Tier 2
Building mastery +1+1
Mastery upgrade
Raises Building mastery by 1.
Requires: Building mastery +1
Perk
Clay at the Clay Digger Stand: 6 ticks instead of 8; Sand at the Sand Digger Stand: 6 ticks instead of 8.
Requires: Building mastery +1
Perk
Fabric at the Assembly bench I, Assembly bench II, Assembly bench III or Weaving Loom: 2 instead of 1; plus 4 more.
Requires: Building mastery +1
Building mastery +1+1
Mastery upgrade
Raises Building mastery by 1.
Requires: Building mastery +1
Tier 3
Perk
+2 Building mastery when working with wood.
Requires: Building mastery +1
Building mastery +1+1
Mastery upgrade
Raises Building mastery by 1.
Requires: Building mastery +1
Perk
Log at the Lumberjack stand: 6 ticks instead of 8.
Requires: Building mastery +1
Perk
Stone at the Zombie Stone Quarry: 6 ticks instead of 8; Marble at the Zombie Marble Quarry: 6 ticks instead of 8.
Requires: Building mastery +1
Building mastery +1+1
Mastery upgrade
Raises Building mastery by 1.
Requires: Building mastery +1
Perk
+2 Building mastery when working with stone.
Requires: Building mastery +1
Tier 4
Perk
+4 Building mastery when working with wood.
Requires: Building mastery +1
Building mastery +2+2
Mastery upgrade
Raises Building mastery by 2.
Requires: Building mastery +1
Perk
A 10% chance of 1 extra Gem at the Zombie Miner.
Requires: Building mastery +1
Perk
2 fewer ticks per craft on the 63 recipes it improves.
Requires: Building mastery +1
Building mastery +2+2
Mastery upgrade
Raises Building mastery by 2.
Requires: Building mastery +1
Perk
+4 Building mastery when working with marble.
Requires: Building mastery +1
17 nodes: 10 zombie perks and 7 mastery upgrades worth +9 Smithing mastery in total. The whole tree costs one zombie 2,750 red tech points.
Tier 1
Smithing mastery +1+1
Mastery upgrade
Raises Smithing mastery by 1.
Tier 2
Perk
Iron Ore at the Zombie Miner: 6 ticks instead of 8.
Requires: Smithing mastery +1
Smithing mastery +1+1
Mastery upgrade
Raises Smithing mastery by 1.
Requires: Smithing mastery +1
Perk
+2 Smithing mastery when working with bronze.
Requires: Smithing mastery +1
Smithing mastery +1+1
Mastery upgrade
Raises Smithing mastery by 1.
Requires: Smithing mastery +1
Tier 3
Perk
+3 Smithing mastery when working with glass.
Requires: Smithing mastery +1
Smithing mastery +1+1
Mastery upgrade
Raises Smithing mastery by 1.
Requires: Smithing mastery +1
Perk
+4 Smithing mastery when working with iron.
Requires: Smithing mastery +1
Perk
+2 damage per hit with its pike.
Requires: Smithing mastery +1
Smithing mastery +1+1
Mastery upgrade
Raises Smithing mastery by 1.
Requires: Smithing mastery +1
Perk
+3 damage per hit with its bow.
Requires: Smithing mastery +1
Tier 4
Perk
2 fewer ticks per craft on the 63 recipes it improves.
Requires: Smithing mastery +1
Smithing mastery +2+2
Mastery upgrade
Raises Smithing mastery by 2.
Requires: Smithing mastery +1
Perk
+6 Smithing mastery when working with steel.
Requires: Smithing mastery +1
Perk
+1 armor for the zombie in battle.
Requires: Smithing mastery +1
Smithing mastery +2+2
Mastery upgrade
Raises Smithing mastery by 2.
Requires: Smithing mastery +1
Perk
The zombie has 150 health in battle instead of 100.
Requires: Smithing mastery +1
17 nodes: 10 zombie perks and 7 mastery upgrades worth +9 Farming mastery in total. The whole tree costs one zombie 2,850 green tech points.
Green tech points
100
Tier 1
Farming mastery +1+1
Mastery upgrade
Raises Farming mastery by 1.
Tier 2
Farming mastery +1+1
Mastery upgrade
Raises Farming mastery by 1.
Requires: Farming mastery +1
Perk
+2 Farming mastery when planting crops.
Requires: Farming mastery +1
Perk
Supply: Flour Sack at the Kitchen I or Kitchen II: 2 instead of 1; Flour at the Millstone: 8 instead of 5.
Requires: Farming mastery +1
Farming mastery +1+1
Mastery upgrade
Raises Farming mastery by 1.
Requires: Farming mastery +1
Tier 3
Perk
No effect: zombies have no fishing work and no catch changes with it.
Requires: Farming mastery +1
Farming mastery +1+1
Mastery upgrade
Raises Farming mastery by 1.
Requires: Farming mastery +1
Perk
+3 Anatomy mastery when making fertilizer.
Requires: Farming mastery +1
Perk
+3 Farming mastery at the brewery.
Requires: Farming mastery +1
Farming mastery +1+1
Mastery upgrade
Raises Farming mastery by 1.
Requires: Farming mastery +1
Perk
+4 Farming mastery when pressing juice.
Requires: Farming mastery +1
Tier 4
Perk
No effect: zombies have no fishing work and no catch changes with it.
Requires: Farming mastery +1
Farming mastery +2+2
Mastery upgrade
Raises Farming mastery by 2.
Requires: Farming mastery +1
Perk
+4 Farming mastery when planting crops.
Requires: Farming mastery +1
Perk
+4 Farming mastery when making canned goods.
Requires: Farming mastery +1
Farming mastery +2+2
Mastery upgrade
Raises Farming mastery by 2.
Requires: Farming mastery +1
Perk
+5 Farming mastery when making wine.
Requires: Farming mastery +1
19 nodes: 12 zombie perks and 7 mastery upgrades worth +9 Book writing mastery in total. The whole tree costs one zombie 900 red and 710 blue tech points.
Blue tech points
10
Tier 1
Book writing mastery +1+1
Mastery upgrade
Raises Book writing mastery by 1.
Perk
At least the rats seem to enjoy it. Slightly increases church quality when assigned to the choir or organ.
Tier 2
Perk
Story starts with 2 successful ticks already done; Improve story I and Improve story II start from the first tick.
Requires: Book writing mastery +1
Book writing mastery +1+1
Mastery upgrade
Raises Book writing mastery by 1.
Requires: Book writing mastery +1
Perk
Leather Scroll at the Writing Desk: 6 instead of 4; Clean Paper at the Writing Desk: 10 instead of 6; Clean Paper at the Paper Press: 30 instead of 20; plus 3 more.
Requires: Book writing mastery +1
Book writing mastery +1+1
Mastery upgrade
Raises Book writing mastery by 1.
Requires: Book writing mastery +1
Perk
Story and Newspaper start with 2 successful ticks already done; its other 16 recipes at the Writing Desk and the Printing Press start from the first tick.
Requires: Book writing mastery +1
Perk
Not bad for someone without a pulse. Increases church quality when assigned to the choir or organ.
Requires: Novice Musician
Tier 3
Perk
+3 Book writing mastery when writing stories (the tooltip lists +4).
Requires: Book writing mastery +1
Book writing mastery +1+1
Mastery upgrade
Raises Book writing mastery by 1.
Requires: Book writing mastery +1
Perk
+3 Book writing mastery when crafting paper (the tooltip lists +4).
Requires: Book writing mastery +1
Book writing mastery +1+1
Mastery upgrade
Raises Book writing mastery by 1.
Requires: Book writing mastery +1
Perk
No effect: its 14 recipes at the Jewelry Table start from the first tick and turn out the same with or without it.
Requires: Book writing mastery +1
Perk
Even the angels are taking notes. Greatly increases church quality when assigned to the choir or organ.
Requires: Skilled Musician
Tier 4
Perk
+3 Book writing mastery when working at the Writing Desk (the tooltip lists +4).
Requires: Book writing mastery +1
Book writing mastery +2+2
Mastery upgrade
Raises Book writing mastery by 2.
Requires: Book writing mastery +1
Perk
+3 Book writing mastery when working at the Printing Press (the tooltip lists +4).
Requires: Book writing mastery +1
Book writing mastery +2+2
Mastery upgrade
Raises Book writing mastery by 2.
Requires: Book writing mastery +1
Perk
+3 Smithing mastery when working at the Jewelry Table (the tooltip lists +4).
Requires: Book writing mastery +1
15 nodes: 8 zombie perks and 7 mastery upgrades worth +9 Anatomy mastery in total. The whole tree costs one zombie 900 red and 850 blue tech points.
Tier 1
Anatomy mastery +1+1
Mastery upgrade
Raises Anatomy mastery by 1.
Tier 2
Perk
Melted Fat at the Distillation Cube: 7 instead of 4 or 5 instead of 3, by recipe; Alcohol at the Distillation Cube: 7 instead of 4, 2 instead of 1 or 3 instead of 2, by recipe; plus 1 more.
Requires: Anatomy mastery +1
Anatomy mastery +1+1
Mastery upgrade
Raises Anatomy mastery by 1.
Requires: Anatomy mastery +1
Perk
A 40%, 50%, 60% or 80% chance (set per recipe) of 1 extra item on 27 recipes.
Requires: Anatomy mastery +1
Anatomy mastery +1+1
Mastery upgrade
Raises Anatomy mastery by 1.
Requires: Anatomy mastery +1
Tier 3
Perk
+3 mastery on its 6 recipes: Anatomy for the candles and incense at the Formulation Bench, Book writing for Music Notes (the tooltip lists +4).
Requires: Anatomy mastery +1
Anatomy mastery +1+1
Mastery upgrade
Raises Anatomy mastery by 1.
Requires: Anatomy mastery +1
Perk
+3 Anatomy mastery when crafting potions (the tooltip lists +4).
Requires: Anatomy mastery +1
Anatomy mastery +1+1
Mastery upgrade
Raises Anatomy mastery by 1.
Requires: Anatomy mastery +1
Perk
2 fewer ticks per craft on the 13 recipes it improves.
Requires: Anatomy mastery +1
Tier 4
Perk
+3 Anatomy mastery when working at the Distillation Cube (the tooltip lists +4).
Requires: Anatomy mastery +1
Anatomy mastery +2+2
Mastery upgrade
Raises Anatomy mastery by 2.
Requires: Anatomy mastery +1
Perk
+3 Anatomy mastery when working at the Formulation Bench (the tooltip lists +4).
Requires: Anatomy mastery +1
Anatomy mastery +2+2
Mastery upgrade
Raises Anatomy mastery by 2.
Requires: Anatomy mastery +1
Perk
+3 Building mastery when crafting gravestones and grave fences (the tooltip lists +4).
Requires: Anatomy mastery +1
How it works
Zombies pay for their nodes with the tech points they earn while crafting and the red tech points they earn in won battles, not with the Keeper's. Every node, perk or mastery upgrade, also takes one of the red skulls on the zombie's body: a zombie can buy a node only while it has more red skulls than nodes, and if it later has fewer red skulls than nodes, some of its nodes stop working until it has enough again.
A zombie starts a normal recipe only when its mastery reaches the recipe's requirement; star crafts and autopsy work are the exception, as long as its mastery is at least 1. Its mastery is the sum of the mastery nodes of its own trees, bought with the tech points it earns while crafting and in won battles, the mastery bonus of the tools it carries, and zombie perks for one kind of work, such as +4 Building mastery when working with wood (Master Carpenter).
