Game information
Tech Points and Unlock Costs
Check red, green, and blue costs before choosing a branch.
full game 1.009.1 · Site updated
On this page
Technology nodes have separate red, green, and blue point costs and can require parent nodes. Check the actual node before spending.
Follow prerequisites
The reference lists 236 technology entries. The tech tree lists named nodes, their parents, tab, and three point costs. A node can also unlock recipes, buildings, or perks. Demo availability does not necessarily limit the full game.
Zombie combat rewards
Victorious fights with configured technology rewards can award points to linked zombie fighters. This is separate from a crafting recipe's technology-point output; do not assume every fight awards points or that the listed craft reward applies to combat.
Story-gated technology
Some nodes remain hidden until their story event reveals them. The church choir and organ branches are examples; having enough points alone does not make every node visible.
Example
The Concept of Wood is a root node in the building tab with a listed cost of 2 red plus 2 green points. Story grants can change whether you actually pay a listed cost, so check your current unlock state. It can unlock early wood processing.
These costs and unlock links come from the game data. They do not tell you how quickly you will earn points or which route is fastest.
Sources
Current rules
The current rules on this page were checked against the Steam Windows game files and behavior rules for the version shown in the page header. This is file-based verification, not a live-save playthrough; save progress can affect the result.
Historical fix records
These announcements document when specific fixes were introduced. Current instructions follow the applicable version shown above.
- Official update 1.006 announcement
1.006: zombies earning red technology points in combat.