HelpViewer is an online help viewer for GNUstep programs. It can render files in the XLP format, although this format has been deprecated and only several packages still use it.

PyDev is a Python IDE for Eclipse, which may be used in Python, Jython and IronPython development.

Fluidsynth is a real-time midi synthesizer based on the soundfont (sf2 and sf3) specifications. It can be used to render MIDI input or MIDI files to audio. The MIDI events are read from a MIDI device. The sound is rendered in real-time to the sound output device.

This is a small, abstract shooting game from Japanese developer Kuni. It is a 'caveflier' in which the exhaust from the engine also serves as a tool to erode the cave walls.

Hitori puzzles give you a grid filled with numbers. The goal is to remove numbers such that no row or column contains duplicates.

radeontop is a small utility which allows one to monitor the utilization of Radeon GPUs starting from the R600 series and newer using undocumented performance counters in the hardware. The utility works with the free drivers.