ThinkPHP Framework
Lutris desktop client in Python
Arianne is an engine to develop multiplayer online games like Stendhal
Chess Database and PGN viewer
ChessMD is a Qt-based chess game viewer with engine analysis
A fun realistic multiplayer free-and-open-source first-person-shooter!
The multiplayer game engine
XML-based framework for developing games
Cinema Enters Game Console
A console/ncurses chess engine frontend and PGN editor.
scriptable game engine with built-in support for 2D graphics and sound
Massive Multiplayer Online Wargame Leveraging the Internet
starrydb is game server engine
online 4X browser game engine
IRB is a game creation toolkit
Chess Database application
Extensive Java chess database libraries.
3D .NET engine for Windows, Linux, Mac
A 3D game engine in java.
plugin-based RPG manager in C++ and Qt5
Next generation web chess club
Built to be ease of use, with no programming knowledge, Multi-platform
Open Source 3D Game Engine