Chess Database and Toolkit program
Framework for producing web-based database applications
Arianne is an engine to develop multiplayer online games like Stendhal
The ultimate cataloguer
Online War system for IL-2 Sturmovik and Iron Front in ArmA 2
Analysis of Oware (Abapa) games
The multiplayer game engine
Java Settlers
Playing Go with web-based turn-based Go server
scriptable game engine with built-in support for 2D graphics and sound
Asphyre is a cross-platform framework for Delphi and FreePascal.
starrydb is game server engine
plugin-based RPG manager in C++ and Qt5
Mad Science
Compact/ Chess Interchange Format
A turn-based multiplayer shooting game in the style of Worms
The IRC's Talking Robot