Native Android app for Habitica
Gideros Release version
A dead simple 2D game library for Go
LÖVE is an awesome 2D game framework for Lua
Orx: Portable Game Engine
the java game and entertainment runtime
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
The Free & Popular Community git Server in a Complete Virtual Machine
Web IDE in single HTML file
Build Cross-platform Applications
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Asphyre is a cross-platform framework for Delphi and FreePascal.
A cross-platform interpreter for many point-and-click adventure games
3D .NET engine for Windows, Linux, Mac
The solution to all your problems
C-Lesh is a game programming language for 2D games.
A powerful cross-platform and open-source 3-D rendering engine.
Java based Open source Voxel Engine for RTS games