Open source clone of the Age of Empires II engine
3D Procedural Game Engine Using OpenGL
Pycraft is an open-source, OpenGL based game made in Python
A planetarium software that shows a 3D simulation of the night sky
High-efficiency minimalist C++ wrapper for OpenGL 4.3
Hardcore 3D space shooter with spaceship upgrade possibilities.
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Open source FPS/RTS Game
3D OpenGL dungeon game using Ada: a tribute to Narbacular Drop
3D modeler, 3D game maker, 3D demo maker
Game engine supporting many 3D/2D formats and graphic effects
A free 3D game engine to create games and realtimes scenes for Windows
Lightweight Shaders for Intel HD Graphics - (Chocapic13' Shaders edit)
Go 3D Game Engine
2D Game Engine
Data-oriented and data-driven game engine written in Rust
3D-Accelerated open-source DOOM engine