Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
Gideros Release version
High-efficiency minimalist C++ wrapper for OpenGL 4.3
Vivid3D is an open-source 3D engine with powerful 2D UI.
3D Scene Builder
An isometric arcade-style game of skill, puzzles and exploration
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Modern 3D engine and IDE written using C# and C++.
Cross-platform 2D and 3D game engine
IGS Labs
Portable game engine with main focus on point-and-click adventures
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Perl bindings to the Modern OpenGL API
3D .NET engine for Windows, Linux, Mac
3D Game Engine
Open Game Bootstrap
An advanced flexible game engine for Java.
Mahasona engine is an open source game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3