OgreWin3D
A game framework written with osu! in mind.
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
INSTEAD - Simple Text Adventure Interpreter.
Game engine supporting many 3D/2D formats and graphic effects
SDL based generic 2D game engine
Reusable code for building video games with Jogamp NEWT
TX Library is a tiny graphics library for Win32 written in C++.
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
Javascript Canvas Framework
Multi-threaded game engine for Android
Flexible and easy-to-use 2d game engine
.NET - VISUAL BASIC NVIDIA +ATI PHYSX SLIMDX DIRECTX 9 -ENGINE/WRAPPER
Open Game Bootstrap
Single-/multi-player card game Mau Mau (similar to UNO®)
Built to be ease of use, with no programming knowledge, Multi-platform
THIS SOFTWARE IS IN PRE-PRE-PRE-PRE-ALPHA. So don't really download it
Multimedia asset management and manipulator for Étoilé