Quite suddenly, GTA IV disappeared from Steam - with the game no longer being able to be purchased by gamers wanting to step into the shoes of Niko Belic. A member of the ResertEra forum recently discovered that the Steam page for GTA IV no longer has a purchase button where it once was, meaning no-one can purchase the game via Steam.
However, all is not lost for those wanting to get the game at some point in the future. Rockstar has clarified their reasoning for taking the game off Steam, with a spokesperson sharing a statement with GameSpot:
Grand Theft Auto V and Grand Theft Auto: San Andreas, at the moment remain available for purchase on Steam.For those who already own GTA IV on Steam, don't you worry, you can continue to play the title until you get tired of driving about doing senseless crimes.Grand Theft Auto IV was originally created for the Games For Windows Live platform. With Microsoft no longer supporting Games For Windows Live, it is no longer possible to generate the additional keys needed to continue selling the current version of the game. We are looking at other options for distributing GTAIV for PC and will share more information as soon as we can.