Fast and lightweight JavaScript game engine built on WebGL and glTF
Gideros Release version
Game engine supporting many 3D/2D formats and graphic effects
PyCAPGE - Python Classic Adventure Point and Click Game Engine
A free 3D game engine to create games and realtimes scenes for Windows
Modern 3D engine and IDE written using C# and C++.
2D game engine for traditional platform games
Unreal Engine 4 first-person criminal simulator.
Multi-threaded 2D Renderer licensed under the Mozilla Public License
AS3 Utilities library (Games Development Framework)