Sphere provides a complete IDE and a runtime engine to build simple to semicomplex 2d games. The games you create with it are directly portable to windows without any modifications (there is a windows runtime). It has a simple point and click like interface for creating the game content, and generally, it's one of the first game makers for linux. It's wxEditor is being ported, there are some bugs, but it should be useable. I'm looking for people to beta test it together with me so we can file the final bugs and get 1.0 for linux ready. I hope you enjoy sphere! Features: Alpha blending, javascript scripting (spidermonkey), map editor, sprite editor, image editor, tileset editor, packages, networking, sound support, lot's of image formats are supported, lot's of precreated functionality, etc.

License: free

Additional System Requirements: corona, audiere, sdl, wxWidgets (gtk+) the former two can be downloaded from the website. sdl is available from www.libsdl.org and wxWidgets from www.wxwidgets.org. Make sure you get the gtk+ runtime version of wxWidgets.