Dungeon Siege III (DSIII or DS3) is an upcoming action role-playing game to be developed by Obsidian Entertainment and published by Square Enix for the PlayStation 3, Xbox 360 and Microsoft Windows. Chris Taylor, the original creator of Dungeon Siege will serve as an advisor during the development of the game. This is the third game in the series not to be developed by Gas Powered Games, (after Dungeon Siege: Legends of Aranna by Mad Doc Software and Dungeon Siege: Throne of Agony by SuperVillain Studios) and the first to be published by Square Enix after it acquired the complete ownership of the Dungeon Siege franchise and is due to be released in 2011.