The imaginary eight-bit machine
CSG for jMonkey
easy programming language for cross-platform 2d games
Javascript Canvas Framework
MultiLingual Interactive Fiction
C library for manipulating Minecraft world data
Extremely simple joystick rumble / vibration library
Source code of the chapters of the book 3D Game Development with LWJGL
Mahasona engine is an open source game engine.
Examples of procedural geometry for Unity3D C#
Utility math library for develping 2d games