A retro game engine for Python
Eva.js is a front-end game engine for creating interactive projects
High performance UI layout library in C
Chess Database and PGN viewer
GEDKeeper - opensource and crossplatform genealogy management program
Injectable LUA scripting system, SDK generator, live property editor
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A work-in-progress chess bot written in C#
XML-based framework for developing games
Children's learning programming language Karel the Robot in 3D
DarkForest, the Facebook Go engine
The forever free, ad-free and open source chess server
Chess Database application
Extensive Java chess database libraries.
3D urban environment renderer : browser-app ; as well as a GTA clone
Jetpac Clone, written in JavaScript, wrapped in a Mac App
Chess engine, currently in development
A powerful chess engine written in C++
A Java chess engine using xboard protocol
A chess engine in C# using bitboards
The IRC's Talking Robot