Tech Tree

The Tech Tree was used in the XP System, which was later replaced by Components.

Level 1

Wooden Door: 0 XP	Rock: 0 XP	Paper: 0 XP
Note: 0 XP	Bone Club: 0 XP	Paper Map: 0 XP
Lock: 0 XP	Building Plan: 0 XP	Leather Gloves: 0 XP
Burlap Shoes: 0 XP	Camp Fire: 0 XP	Hammer: 0 XP
Tool Cupboard: 0 XP	Low Grade Fuel: 0 XP	Wooden Window Bars: 0 XP
Torch: 0 XP	Sleeping Bag: 0 XP	Smoke Rocket: 0 XP
Wood Double Door: 0 XP	Bandage: 0 XP

Level 2

Hide Skirt: 1 XP	Wooden Spear: 1 XP	Burlap Trousers: 1 XP
Survival Fish Trap: 1 XP

Level 3

Small Stash: 2 XP	Bota Bag: 2 XP	Stone Pick Axe: 2 XP
Stone Hatchet: 2 XP

Level 4

Small Wooden Sign: 3 XP	Wood Chestplate: 3 XP	Wood Storage Box: 3 XP
Stone Spear: 5 XP	Bone Knife: 5 XP

Level 5

Wooden Floor Spikes: 3 XP	Salvaged Shelves: 3 XP	Furnace: 3 XP
Burlap Shirt: 3 XP	Hide Halterneck: 5 XP	Machete: 5 XP

Level 6

Wood Armor Pants: 3 XP	Burlap Headwrap: 3 XP	Sandbag Barricade: 3 XP
Wooden Sign: 5 XP	Code Lock: 5 XP	Water Purifier: 5 XP

Level 7

Wooden Arrow: 5 XP	Wood Shutters: 5 XP	Repair Bench: 5 XP
Door Key: 5 XP	Hide Vest: 7 XP	Hide Pants: 7 XP
Hunting Bow: 8 XP

Level 8

Water Bucket: 5 XP	Wooden Barricade: 5 XP	Metal Window Bars: 5 XP
Sheet Metal Door: 7 XP	Hide Poncho: 7 XP	Hide Boots: 7 XP
Huge Wooden Sign: 9 XP

Level 9

Large Wood Box: 5 XP	Candle Hat: 5 XP	Bone Armor: 5 XP
Shop Front: 5 XP	Bucket Helmet: 7 XP	Water Barrel: 7 XP
Salvaged Sword: 8 XP

Level 10

Wooden Ladder: 5 XP	Floor Grill: 5 XP	Small Water Catcher: 7 XP
Improvised Balaclava: 7 XP	Large Wooden Sign: 7 XP	Acoustic Guitar: 7 XP
Crossbow: 8 XP	Research Table: 9 XP

Level 11

Stone Barricade: 5 XP	Chainlink Fence: 5 XP	Chainlink Fence Gate: 5 XP
Ladder Hatch: 5 XP	Hatchet: 7 XP	Wolf Headdress: 7 XP
Salvaged Cleaver: 8 XP	Pick Axe: 9 XP

Level 12

Metal Vertical embrasure: 5 XP	Metal horizontal embrasure: 5 XP	T-Shirt: 5 XP
Bone Helmet: 5 XP	Handmade Shell: 5 XP	Sheet Metal Double Door: 7 XP
Barbed Wooden Barricade: 7 XP	Gun Powder: 7 XP	Eoka Pistol: 8 XP

Level 13

Pants: 6 XP	Concrete Barricade: 6 XP	Medical Syringe: 6 XP
Reinforced Window Bars: 8 XP	High Velocity Arrow: 8 XP	Waterpipe Shotgun: 9 XP
Beancan Grenade: 9 XP

Level 14

Prison Cell Wall: 6 XP	Prison Cell Gate: 6 XP	Salvaged Axe: 8 XP
Mace: 9 XP	Metal Barricade: 10 XP	Salvaged Icepick: 10 XP
Road Sign Kilt: 10 XP

Level 15

Large Furnace: 8 XP	Ceiling Light: 10 XP	Large Water Catcher: 10 XP
Snap Trap: 10 XP	Bed: 10 XP	Satchel Charge: 12 XP
Double Barrel Shotgun: 12 XP

Level 16

Longsleeve T-Shirt: 8 XP	Hoodie: 8 XP	Pistol Bullet: 8 XP
Lantern: 10 XP	Salvaged Hammer: 10 XP	Miners Hat: 10 XP
Revolver: 12 XP

Level 17

Large Medkit: 11 XP	Reactive Target: 11 XP	Boots: 11 XP
Land Mine: 13 XP	Riot Helmet: 13 XP	Armored Door: 13 XP

Level 18

5.56 Rifle Ammo: 11 XP	Jacket: 11 XP	Beenie Hat: 11 XP
Snow Jacket - Red: 13 XP	Semi-Automatic Rifle: 14 XP	Auto Turret: 17 XP

Level 19

Small Oil Refinery: 14 XP	Coffee Can Helmet: 16 XP	HV Pistol Ammo: 16 XP
Road Sign Jacket: 16 XP	Longsword: 18 XP

Level 20

Hazmat Gloves: 14 XP	Hazmat Boots: 14 XP	Armored Double Door: 16 XP
F1 Grenade: 18 XP	Flame Thrower: 18 XP

Level 21

12 Gauge Buckshot: 11 XP	High External Wooden Gate: 11 XP	Hazmat Jacket: 11 XP
High External Wooden Wall: 11 XP	Survey Charge: 11 XP	Hazmat Pants: 11 XP
Semi-Automatic Pistol: 14 XP

Level 22

Explosives: 14 XP	HV 5.56 Rifle Ammo: 16 XP	Incendiary Pistol Bullet: 16 XP
Hazmat Helmet: 16 XP	Muzzle Brake: 18 XP	Silencer: 18 XP

Level 23

12 Gauge Slug: 27 XP

Pump Shotgun: 35 XP

Weapon Flashlight: 35 XP

Level 24

Thompson: 54 XP

Weapon Lasersight: 54 XP

Level 25

Mining Quarry: 28 XP

Timed Explosive Charge: 34 XP

MP5A4: 39 XP

Level 26

Incendiary 5.56 Rifle Ammo: 43 XP

Holosight: 59 XP

Level 27

Muzzle Boost: 41 XP

Rocket Launcher: 41 XP

Custom SMG: 41 XP

Level 28

High External Stone Wall: 50 XP

High External Stone Gate: 50 XP

Level 29

Explosive 5.56 Rifle Ammo: 48 XP

Bolt Action Rifle: 66 XP

Level 30

Rocket: 49 XP

4x Zoom Scope: 68 XP

Level 31

High Velocity Rocket: 51 XP

LR-300 Assault Rifle: 48 XP

Assault Rifle: 71 XP

Level 32

Metal Chest Plate: 103 XP

Level 34

Metal Facemask: 109 XP

Level 36

Incendiary Rocket: 111 XP

Level 75

Wind Turbine: 224 XP