Cocos simplifies game creation and distribution with Cocos Creator
Cross-platform 2D and 3D game engine with modular architecture
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Enigma is a puzzle game
A free 3D game engine to create games and realtimes scenes for Windows
Vivid is a modern C++ 3D engine using OpenGL4+
A 2D game engine and level editor
A cross platform Lua based game engine
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
sandbox particle simulator that obeys schrödinger's equation
Open-source, cross-platform, C++ game engine for creating 2D/3D games
2D game engine for traditional platform games
A traditional top-down OpenGL car racing game
A generic 2D engine for any kind of game
2D physics engine for games
A game development kit for Sifteo Cubes.
3D game engine for C and C++
A 2D shoot them up game respecting space physics. Alpha.