VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Borderlands - Borderlands is a science fiction first-person shooter with RPG elements made with cel-shaded...
SMPlayer - SMPlayer is a free video and audio player for both Windows and Linux that allows you to play almost all media files without having to install additional codecs. Read more about SMPlayer.
Bulletstorm - In this sci-fi first person shooter, players take on the role of mercenary Grayson Hunt in an attempt to get off a hostile alien planet and get a little bit of vengeance along the way.
MPV - MPV is an audio and movie player based on MPlayer and mplayer2.
Urban Terror - Urban Terror started as a realism based "total conversion" mod for Quake III Arena.