Dummy2d is simple and fast programming language similar to early BASIC. Dummy2d mostly useful for 2D games. To create Dummy2d games you need Windows OS. Dummy2d games will run on Winowsd and Linux (through WINE).
Download and info: https://sourceforge.net/projects/dummy2d/files/
Dummy2d IS TOTALLY FREE FOR COMMERCIAL AND NON-COMMERCIAL USE.
Entropia Engine is a 2d video-game development oriented library that takes advantage of hardware acceleration features provided by DirectX8. It comes with multiple tools that will make your game development much easier.