Tech Tree API

Code generator

Fill the form, get a compiling plugin, the csproj block and the cost table your players will actually pay.

Everything happens in your browser - nothing is uploaded. What you type is kept in localStorage so the page survives a refresh.

Your mod

Plugin guid The same string as in [BepInPlugin].

Sub-tab name Shown inside the Mods tab. Cut at 18 characters.

The node

Node id Lower case, prefix.name. Never change it after release.

Display name

Levels

Sort order Column position inside your sub-tab.

Sell-back rate 0 to 1. Leave at 0.6 for the tree default - the line is only emitted when you change it. Requires 1.3.1

Price

Pricing

Base cost (level 1)

Cost multiplier 1.8 is what every built-in upgrade uses.

Icon and text

Icon

Which built-in See them rendered on Icons.

Effect text C# interpolation. {lvl} is the 1-based level.

Gate (optional)

Locked until

Store level for level 1 (0 = no requirement)

Added per level after that

Scale

The game's own last restocker unlocks at store level 50, and Tech Tree's own upgrades top out around there. Asking for much more than that hides your node from nearly everyone. Leave both at 0 for no requirement at all.

Checks

Output

The effect is still yours

The generated plugin compiles and puts a node in the tree, but the bottom of the file is a commented-out patch, not a working effect. What the level does is the one part no generator can write for you. Events covers the three shapes it can take.