How to find FOSS (free and open source computer) games

Guidelines

 * Only sites that specify when a game is Free Software and Open Source software.

main listing sites

 * happypenguin - most complete, it has the possibility to search only for free games.
 * games for linux
 * liberated games
 * popular games on SWiK.net

other listing sites

 * osgaming
 * caiman
 * Libregamewiki, a wiki on free games.

communities producing free games

 * lgames

french listing sites

 * jeuxlibres.com French site
 * jeuxlibres.net French site

review sites

 * gamereviews

From HowTo Wiki, a Wikia wiki.