FlightGear is an open-source flight simulator.

TrueCombat:Elite - A team-based realism modification, based on the free and popular Enemy Territory.

Pingus is a free Lemmings-like game covered under the GNU GPL. It features currently 22 playable levels and runs under a wide variety of operating systems (Linux, Windows, etc.)

Nexuiz is a 3d deathmatch game project, created online by a team of developers called Alientrap.

The Refocus-it GIMP plug-in, released under GNU General Public License (GPL), can be used to refocus images acquired by a defocused camera, blurred by gaussian or motion blur or any combination of these.

Jamendo is the world's #1 platform for free and legal music downloads. Available in seven languages, it offers the largest Creative Commons-licensed music catalog there is. For artists, it's an easy and efficient way to publish, share and promote their music, but also to make money through ad revenue sharing and commercial partnerships.

Opsound is a gift economy in action, an experiment in applying the model of free software to music. Musicians and sound artists are invited to add their work to the Opsound pool using a copyleft license developed by Creative Commons. Listeners are invited to download, share, remix, and reimagine.