| Box | Object subclass for boxes (primitive) |
| Camera | Camera helper |
| Capsule | Object subclass for Capsule |
| Character | Character controller |
| Game | The core class of TFK:GE |
| Game::State | The main entry point to TFK:GE |
| Mesh | Object subclass for static meshes |
| Object | Base class for all physics-enabled game objects |
| Player | Special Character that reacts to key events |
| SharedMesh | Object subclass for meshes |
| Sphere | Object subclass for spheres (primitive) |
| World | Physics wrapper |
1.5.5