VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
foobar2000 - An advanced freeware audio player for the Windows platform.
Quake - Quake is a series of first-person shooter video games released by id Software.
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.