Test project with a 2D platform game developing in Godot 3.1
Map Generation Application and API
scriptable game engine with built-in support for 2D graphics and sound
Create units and attacks for Wesnoth!
2D game creation software
The Flixel Power Tools are a set of plug-ins for Flixel 2.5+
LibGDX/LWJGL tutorials and examples
StarlingPunk is a framework built on top the Starling library
Code Difference report
Programming Game, A Practice Tool for Building Intelligent Things
A C++ Implementation of the MIT OpenBlocks Java Code
AMOS BASIC reimplementation in Java
A cross-platform Java 2D graphics library using OpenGL.