Here is a list of all related documentation pages:

Game: Codebase overview
AngelScript: ActorSimAttributes (live tinkering system)
AngelScript: FreeBeams (FreeForces type family `HALFBEAM_*`)
AngelScript: FreeForces (physics affectors)
Gadget system
AngelScript: Generic file format tokenizer
AngelScript: OGRE3D renderer bindings
AngelScript: Procedural Roads
AngelScript: Features overview
Deprecated List