A simple and easy-to-use library to enjoy videogames programming
Orx: Portable Game Engine
GemRB is a portable open-source implementation of the Infinity Engine
Old style soccer game with many exciting features
Game engine supporting many 3D/2D formats and graphic effects
Some humble web applications
A question-answer game for various trivia topics for road-trips
Portable game engine with main focus on point-and-click adventures
plugin-based RPG manager in C++ and Qt5
Paintown is a 2d fighting game engine.
Nurikabe, a great game.