1920x1080pxPortal 2 game application, video games, Valve Corporation, Portal 2, Aperture Laboratories, GLaDOS, artwork, concept art, Portal (game), HD wallpaper
1920x1080pxassorted game application collage wallpaper, Battlefield, Diablo III, Diablo, Portal 2, Portal (game), euro truck simulator, crusader kings, enigma, Grand Theft Auto V, HD wallpaper
1920x1200pxPortal game application screenshot, Portal, Portal 2, HD wallpaper
4401x3910pxValve game application, Valve, Valve Corporation, Steam (software), actor, Half-Life 2, Half-Life, Team Fortress 2, Portal 2, Left 4 Dead, Left 4 Dead 2, Dota 2, Gordon Freeman, Chell, G-Man, Cave Johnson, Alyx Vance, GLaDOS, Wheatley, infographics, HD wallpaper
