GMAMEUI is a front-end for MAME on Linux. It helps the user play and configure arcade games more easily. GMAMEUI is an enhancement of GXMame, fixing a number of long-standing bugs, including adding support for SDLMame in preference over the now-obsolete X-MAME. New UI features were also added.
Choerbaerts Suche nach dem Rönk (Choerbaerts search for the Rönk, or CSNDR for short) is the name of a 2d adventure. Its code is based on SDL and OpenGL. It is written in C++. At the moment, it is still under heavy development. There are playable releases available, but they are mainly for testing purposes without any story elements.
Guitar Trainer is an application for mobile devices that helps musicians learn the fretboard of their stringed instrument thoroughly. It supports guitar, bass, banjo, ukulele, mandolin, and cavaquinho (in standard and alternate tunings). It includes a training mode, a game mode, and a tuner. It should work on any Java device supporting CLDC 1.1/MIDP 2.0.