Kinect based controller.
3D Interactive sandbox environment
A 3D, fully concurrent game engine
Pygrid is an open-source and cross-platform pygame/python 2D engine.
A cross-platform game framework based on OpenGL and GObject.
This pack add's custom object and rides into your "RCT3 Platinum" game
A multiplatform game engine for interactive fiction experiences
A retro style video game engine for RPGs and adventure games.
A game development kit for Sifteo Cubes.
C library for manipulating Minecraft world data
2D Game Engine, based on OpenGL and focused on Isometric Games
Extremely simple joystick rumble / vibration library
Scriptable frontend for media applications.
3D game engine for C and C++