UCI chess engine
Open-source Android/Desktop remake of Civ V
Xash3D FWGS engine
Desktop/Android/HTML5/iOS Java game development framework
The game engine for everyone
Voxel game-creation platform with easy modding and game creation
The source code to VVVVVV
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Pokedex demonstrates modern Android development with Hilt
Portable UCI- and XBoard-compatible chess engines.
GemRB is a portable open-source implementation of the Infinity Engine
Domination is a game that is a bit like the board game Risk
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Android, UIQ 3.0, Series 60 Edition 5 open-source software
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
Platform independent browser based Str8ts solver
Platform independent browser based Sudoku solver
Some humble web applications
A promising chess program
quiz game with spin wheel
Orx: Portable Game Engine
A Endless running game set in desert filled with obstacles
JavaScript framework to build game engines, games, emulators and apps
PyMancala: A Python API for the Mancala game