The Tiny JavaScript Game Engine That Can!
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
dhewm 3 main repository
3D C++ Game Engine - yet another open source game engine
Built to be ease of use, with no programming knowledge, Multi-platform
Framework for a graphical point and click adventure game in Java
Demonstrating the features of jMonkeyEngine 3.
Cross-platform 2D game engine
Free MMORPG Engine. Develop and host graphical browser-based games.