Square Enix has now confirmed that the US release date for Dungeon Siege III will be on May 31, a few days after the next game in the fantasy action-RPG series shows up on European shores on May 27. More importantly, a number of retailers have announced their own pre-order incentives for putting your money down early to get the game from developer Obsidian Entertainment.

Perhaps the coolest pre-order incentive is if you get the game via the Steam download service. Those folks will get free single player versions of both previous Dungeon Siege games (developed by Gas Powered Games) for free. Pre-orders at GameStop get two exclusive in-game items (Burning Band of Scorch and Talisman of the Grand Mage) while Amazon.com pre-orders get the Bite of the Arakun in game item and Best Buy pre-orders get the Sacred Heart of the Legion in-game item. Wal-Mart pre-orders will get a mini-strategy guide for the game along with a Dungeon Siege mini-comic produced by Dark Horse Comics.