text: The German publisher RuneSoft was founded in 2000. They ported the games Northland,Robin Hood: The Legend of Sherwood, Airline Tycoon Deluxe, Ankh, Ankh: Heart of Osiris, Barkanoid 2, and Jack Keane to Linux, as well as porting Knights and Merchants: The Shattered Kingdom and Software Tycoon, for Linux Game Publishing. Hyperion Entertainment ported games to several systems, they have ported Shogo: Mobile Armor Division and SiN to Linux, as well as porting Gorky 17 for Linux Game Publishing. Wyrmkeep Entertainment has brought the games The Labyrinth of Time and Inherit the Earth: Quest for the Orb to Linux. Alternative Games brought Trine and Shadowgrounds, and Shadowgrounds Survivor for Linux Game Publishing.
  Aspyr Media released their first Linux port in June 2014, they claim they are porting to Linux due to Valve bringing out SteamOS. Aspyr Media later ported Borderlands 2 to Linux in September 2014.
  Having ported games to the Macintosh since 1996, video game publisher Feral Interactive released XCOM: Enemy Unknown, its first game for Linux, in June 2014. Feral Interactive stated they port games to Linux thanks to SteamOS.
  Other developers
  Some id Software employees ported the Doom series, the Quake series, Return to Castle Wolfenstein, Wolfenstein: Enemy Territory and Enemy Territory: Quake Wars. Some games published by GarageGames which have Linux versions include Bridge Builder, Marble Blast Gold, Gish, Tribal Trouble, and Dark Horizons: Lore Invasion.