Kotlin extensions for the libGDX game framework
Multi-platform 2D and 3D game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Open source library for creative expression on the web, desktop, etc.
A completely free, open-source, 2D game engine
Open source reimplementation of GTA San Andreas game engine in Unity
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Educational framework for OpenGLES, OpenCL and OpenAL
OSGET is the first open source mobile game engine template.