Repo with source code for my mods. Also you can find detailed explanation about custom assets for DSP here
Check Common API out. It is useful to quickly create new items, recipes, techs, etc.
In the Unity folder you can find needed scripts and files to create your own buildings, and custom UI.
UI Template prefab:
- Download and unpack BepInEx into game root directory
- Download and install LDBTool
- Download and install DSP_CustomBuildings