Darksiders II pre-order DLC adds two new dungeons
The new downloadable content for Darksiders II that comes free with pre-orders adds two new dungeons to the game.
The Argul's Tomb content is only available as a pre-order bonus for the moment but it does add two full dungeons and a new rail-shooter segment as well.
Argul's Tomb is set in a distant frozen realm far away from the events of the main game.
As with most pre-order bonus downloadable content is would be safe to assume that Argul's Tomb will be made available to buy at some point in the near future.