article: Valve Corporation
links: Software release Counter-Strike Left 4 Dead Computer hardware Microsoft Half-Life Portal (video game) Gabe Newell Bellevue, Washington Team Fortress Classic Steam Deck Team Fortress 2 Linux Half-Life 2 Steam (software) Private company Xbox One Half-Life (Series) Digital distribution Portal 2 United States Puzzle video game Left 4 Dead 2 First-person shooter PS4 PlayStation 3 Third-person shooter Dota 2 Washington (state) Xbox Mike Harrington CEO Xbox 360 Microsoft Windows Genre Video game producer Kirkland, Washington