Cross-Platform C++ 2D/3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Solar2D Game Engine main repository (ex Corona SDK)
UCI chess engine
Open-source engine for Heroes of Might and Magic III
The game engine for everyone
Home theater software and entertainment hub for digital media
A fun realistic multiplayer free-and-open-source first-person-shooter!
Urho3D Game engine
Character animation system for games and simulations.
Blueshift is a cross-platform 3D game engine implemented in C++
Most elegant 2048 puzzle with game fields 4x4 8x8 16x16 for Windows
NextGen Cheat Device
Realtime 3D engine for game development
Open-source, cross-platform, C++ game engine for creating 2D/3D games
plugin-based RPG manager in C++ and Qt5
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
2D physics engine for games
Short maths subtraction puzzle game For intelligent mathematicians.
A cross-platform OpenGL based lightweight scenegraph library