A MUD client for Android, iOS, Linux, Mac OS X and Windows
... the open-source glide computer
3D modeler, 3D game maker, 3D demo maker
A promising chess program
GemRB is a portable open-source implementation of the Infinity Engine
Examples of procedural geometry for Unity3D C#
Cross-platform 2D game engine (+ full OpenGL, +full OpenGL ES )
Old style soccer game with many exciting features
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
the java game and entertainment runtime
INSTEAD - Simple Text Adventure Interpreter.
Embeddable unity game engine view for Flutter
Orx: Portable Game Engine
TUI games designed as a classroom aid for teaching localization.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Blind Chess using Taiwan rules
Platform independent browser based Str8ts solver
Platform independent browser based Sudoku solver
Game engine supporting many 3D/2D formats and graphic effects
Source of Mana is a unique 2D MMORPG
Some humble web applications