Square Enix has announced Dungeon Siege III for the 360, PS3 and PC. The game is in development over at Obsidian Entertainment, with the original creators (Gas Powered Games) keeping an eye on things. This time round it’s going to be an action RPG, featuring four-player co-op as well as in-game companions to recruit for your party. The story focuses on factions coming under attack and it’s up to you (the protector of the disgraced kingdom of Ehb apparently) to unite them. More information will be unveiled at E3 next week.