Progression

Tech tree

Five research branches. Building, Metallurgy and Farming open on waking up at home in the intro; Theology opens during the quest Holy Moly!; Anatomy and Alchemy opens on placing the first body on the autopsy table. Each technology costs red, green and blue tech points, earned by gathering, crafting, using certain items and studying new items at the Study Table, and needs every technology connected to it on its left. The Cooking tab is not researched: its 20 dish groups unlock for free.

Red tech points

Hand-crafting skill and working with materials.

Green tech points

Knowledge of nature and of the nature of things.

Blue tech points

Spiritual knowledge of the immaterial world. The first blue point comes from the Study Table in the church basement.

Reputation gate

A character's portrait in the tree: it opens once the research before it is done and the reputation with that character reaches the value shown.

Metallurgy holds 45 technologies over 15 columns. Researching all of it costs 3,680 red, 330 green and 340 blue tech points. 2 reputation gates sit in this branch. The tab opens on waking up at home in the intro.

45
Technologies: 3,680
Red points: 330
Green points: 340
Blue points

List viewTree view

Red tech points
Green tech points
Blue tech points

Tier 1

Bronze Works
Column 1
Unlocks Bronze Nails and Wooden Anvil.
- 5Red tech points
Unlocks:
- Bronze Nails
- Wooden Anvil

Tier 2

Bronze Melting
Column 2
Unlocks Bronze Ingot, Bronze Nails, Furnace I and Firewood shed I.
- 10Red tech points
Unlocks:
Requires: Bronze Works

Tier 3

Bronze Craft
Column 3
Unlocks Bronze Detail and Hardening Bucket.
- 30Red tech points
Unlocks:
- Bronze Detail
- Hardening Bucket
Requires: Bronze Melting
Glass
Column 3
Unlocks Glass.
- 30Red tech points
- 10Green tech points
Unlocks:
- Glass
Requires: Bronze Melting

Tier 4

Bronze Blades
Column 4
Unlocks Bronze Axe and Bronze Pickaxe.
- 15Red tech points
- 5Green tech points
Unlocks:
- Bronze Axe
- Bronze Pickaxe
Requires: Bronze Craft
Bronze Forge
Column 4
Unlocks Tin, Bronze Ingot and Sluice Box.
- 20Red tech points
Unlocks:
Requires: Bronze Craft
Bronze Instruments
Column 4
Unlocks Bronze Shovel and Bronze Hammer.
- 15Red tech points
- 5Green tech points
Unlocks:
- Bronze Shovel
- Bronze Hammer
Requires: Bronze Craft
Glass Blowing
Column 4
Unlocks Alchemy Flasks I and Empty Bottle.
- 45Red tech points
- 10Green tech points
Unlocks:
- Alchemy Flasks I
- Empty Bottle
Requires: Glass

Tier 5

HerbertReputation
20 reputation
Opens once the research before it is done and the reputation with Herbert reaches 20.
Requires: Bronze Forge
Bronze Polishing
Column 5
Unlocks Polished Bronze, Bronze tools and Copper Trinkets.
- 30Red tech points
Unlocks:
Requires: Bronze Forge
Firewood shed II
Column 5
Unlocks Firewood shed II.
- 20Red tech points
- 5Green tech points
Unlocks:
- Firewood shed II
Requires: Bronze Forge

Tier 6

Reinforced Plank
Column 6
Unlocks Reinforced Plank.
- 45Red tech points
Unlocks:
- Reinforced Plank
Requires: Herbert
Bronze Equipment
Column 6
Unlocks Bronze Armor and Bronze Sword.
- 30Red tech points
Unlocks:
- Bronze Armor
- Bronze Sword
Requires: Herbert
Iron Forge
Column 6
Unlocks Iron Ingot, Supply: Iron and Furnace II.
- 35Red tech points
Unlocks:
Requires: Bronze Polishing

Tier 7

Simple Barricades
Column 7
Unlocks Barricade I, Spiked Barricade I and Fortified Barricade I.
- 60Red tech points
- 25Green tech points
Unlocks:
Requires: Reinforced Plank
Bronze Weapons
Column 7
Unlocks Light Pike and Reinforced Bow.
- 35Red tech points
- 10Green tech points
Unlocks:
- Light Pike
- Reinforced Bow
Requires: Bronze Equipment
Iron Smithing
Column 7
Unlocks Bronze Gear, Iron Nails and Iron Anvil.
- 50Red tech points
Unlocks:
Requires: Iron Forge
Bellows
Column 7
Unlocks Lens, Alchemy Flasks II and Bellows.
- 30Red tech points
Unlocks:
Requires: Iron Forge

Tier 8

Archers Tower
Column 8
Unlocks Archer Tower I and Expand Military Building Area.
- 60Red tech points
- 25Green tech points
Unlocks:
- Archer Tower I
- Expand Military Building Area
Requires: Simple Barricades
Zombie DiggingHidden
Column 8
Unlocks Clay Digger Stand, Sand Digger Stand and Porter Station.
- 50Red tech points
- 10Blue tech points
Unlocks:
Requires: Iron Smithing
Iron Works
Column 8
Unlocks Iron Detail and Iron Kit I.
- 75Red tech points
Unlocks:
- Iron Detail
- Iron Kit I
Requires: Iron Smithing
Zombie MiningHidden
Column 8
Unlocks Zombie Miner and Porter Station.
- 60Red tech points
- 10Blue tech points
Unlocks:
- Zombie Miner
- Porter Station
Requires: Iron Smithing
Smithy I
Column 8
Unlocks Brick, Glass and Smithy I.
- 75Red tech points
- 20Blue tech points
Unlocks:
Requires: Iron Smithing

Tier 9

Reinforced Beam
Column 9
Unlocks Reinforced Beam.
- 75Red tech points
Unlocks:
- Reinforced Beam
Requires: Iron Works
Iron Equipment
Column 9
Unlocks Iron Armor and Iron Sword.
- 80Red tech points
Unlocks:
- Iron Armor
- Iron Sword
Requires: Iron Works
Iron Instruments I
Column 9
Unlocks Iron Axe and Iron Shovel.
- 80Red tech points
- 15Blue tech points
Unlocks:
- Iron Axe
- Iron Shovel
Requires: Iron Works
Iron Instruments II
Column 9
Unlocks Iron Hammer and Iron Pickaxe.
- 80Red tech points
- 15Blue tech points
Unlocks:
- Iron Hammer
- Iron Pickaxe
Requires: Iron Works
Smithy: Hammer
Column 9
Unlocks Iron Ingot, Iron Kit I and Smithy: Hammer.
- 80Red tech points
- 30Blue tech points
Unlocks:
Requires: Smithy I

Tier 10

Robust Barricades
Column 10
Unlocks Barricade II, Spiked Barricade II and Fortified Barricade II.
- 90Red tech points
- 30Green tech points
Unlocks:
Requires: Reinforced Beam
Iron Weapons
Column 10
Unlocks Battle Pike and Battle Bow.
- 90Red tech points
- 10Blue tech points
Unlocks:
- Battle Pike
- Battle Bow
Requires: Iron Equipment
Iron Products
Column 10
Unlocks Advanced Detail and Iron tools.
- 90Red tech points
- 10Blue tech points
Unlocks:
- Advanced Detail
- Iron tools
Requires: Iron Instruments I, Iron Instruments II
Zombie Gears
Column 10
Unlocks Zombie Carousel.
- 90Red tech points
- 20Blue tech points
Unlocks:
- Zombie Carousel
Requires: Smithy: Hammer
Smithy: Bellows
Column 10
Unlocks Tableware, Glass Containers and Smithy: Bellows.
- 90Red tech points
- 20Blue tech points
Unlocks:
Requires: Smithy: Hammer

Tier 11

Archers Tower II
Column 11
Unlocks Archer Tower II.
- 100Red tech points
- 50Green tech points
Unlocks:
- Archer Tower II
Requires: Robust Barricades
JackReputation
70 reputation
Opens once the research before it is done and the reputation with Jack reaches 70.
Requires: Iron Products

Tier 12

Steel Smithing
Column 12
Unlocks Steel Detail, Steel Screws, Steel Anvil and Lantern II.
- 120Red tech points
- 15Blue tech points
Unlocks:
Requires: Jack

Tier 13

Reinforced Barricades
Column 13
Unlocks Barricade III, Spiked Barricade III and Fortified Barricade III.
- 150Red tech points
- 75Green tech points
Unlocks:
Requires: Steel Smithing
Steel Instruments I
Column 13
Unlocks Steel Hammer and Steel Axe.
- 150Red tech points
- 20Blue tech points
Unlocks:
- Steel Hammer
- Steel Axe
Requires: Steel Smithing
Steel Instruments II
Column 13
Unlocks Steel Pickaxe and Steel Shovel.
- 150Red tech points
- 20Blue tech points
Unlocks:
- Steel Pickaxe
- Steel Shovel
Requires: Steel Smithing
Steel Casting
Column 13
Unlocks Engineering Details, Steel tools and Casting Table.
- 150Red tech points
- 20Blue tech points
Unlocks:
Requires: Steel Smithing

Tier 14

Archers Tower III
Column 14
Unlocks Archer Tower III.
- 160Red tech points
- 80Green tech points
Unlocks:
- Archer Tower III
Requires: Reinforced Barricades
Steel Weapons
Column 14
Unlocks Knight's Spear and Heavy Bow.
- 160Red tech points
- 10Blue tech points
Unlocks:
- Knight's Spear
- Heavy Bow
Requires: Steel Instruments I
Steel Equipment
Column 14
Unlocks Steel Armor and Steel Sword.
- 160Red tech points
- 10Blue tech points
Unlocks:
- Steel Armor
- Steel Sword
Requires: Steel Instruments II
Smithy II
Column 14
Unlocks Clay Molds, Iron Kit II and Smithy II.
- 160Red tech points
- 20Blue tech points
Unlocks:
Requires: Steel Casting

Tier 15

Masterwork Equipment
Column 15
Unlocks Master Sword and Master Armor.
- 200Red tech points
- 25Blue tech points
Unlocks:
- Master Sword
- Master Armor
Requires: Steel Equipment
Lenses
Column 15
Unlocks Lens and Smithy: Press.
- 175Red tech points
- 20Blue tech points
Unlocks:
- Lens
- Smithy: Press
Requires: Smithy II
Steel Works
Column 15
Unlocks Engineering Kit, Supply: Steel Tools and Smithy: Grindstone.
- 175Red tech points
- 20Blue tech points
Unlocks:
Requires: Smithy II