SDL Framework (SDLFW)
SDLFW is a cross-platform framework from the powerful SDL library to create your own 2D games with the Lua programming language.
It's easy-to-use, free, open-source, and works on Windows and Linux.
A royalty free BSD licensed mobile device targeted 2D/3D game engine written in C/ObjC using OpenGL & OpenAL. Blender export scripts, png/pvrtc/ogg/ttf/bmp/wav loaders, XML asset manifesting /w desktop editor, Lua scripting, supports iPhone SDK.