GZDoom is a feature centric port for all Doom engine games
An open source flight dynamics & control software library
UZDoom is a feature centric port for all Doom engine games
dhewm 3 main repository
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Free game engine for development of desktop, mobile, and web games
3D game engine with lua scripting
3D Procedural Game Engine Using OpenGL
With the helpfull nef, you have to rescue earthlike planets!
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
A fast-paced free software rally racing game
Hardcore 3D space shooter with spaceship upgrade possibilities.
Let it snow on your desktop
Zoomable user interface (ZUI) with file manager, file viewers and more
A 2D scrolling platform shooter, inspired by Duke Nukem 1
A free Chess program for Windows with a large set of features
Roblox Shader – Download on Any GPU
cross-platform sound-playing package for C++ apps
Modernized traditional finger/hand guessing cricket
MIT Licensed Open Source version of Torque3D from GarageGames
Real-time collision detection and multi-physics simulation for VR
fast paced, arcade-style, top-scrolling space shooter
OpenGL port of the classic 6dof 3D shooter Descent
Commander Keen Interpreter