Portable UCI- and XBoard-compatible chess engines.
Chess analysis, training and testing for Windows.
Good-looking and addictive OpenSource games
Simple 3d Top-Down Shooter & Free 3d Board Game
ChessMD is a Qt-based chess game viewer with engine analysis
A free transportation simulator game
0 A.D. is a free, open-source, cross-platform real-time strategy game.
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Roblox AutoClicker Open Edition — Fast & Safe Auto-Click
Chess Database and PGN viewer
Arianne is an engine to develop multiplayer online games like Stendhal
A real-time 3D Engine written in Ada
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Europa Universalis 4 save game editor
A cross-platform port of Hexen II game.
Amateur 3D Game Engine
Old-school 2D game engine
SDL based generic 2D game engine
Vivid3D is a C++ IDE/3D engine, with python scripting.
3D puzzle game based on Kula World and Cubosphere
A fun realistic multiplayer free-and-open-source first-person-shooter!