Munchkin: Warhammer 40.000 - Storming the Warp

From Steve Jackson Games:

Anyone who has explored the galaxy of Warhammer 40,000 will know that it holds a vast variety of planets. Some of these worlds appear in dozens of stories, such as Holy Terra, the capital of the Imperium of Mankind – others only get a passing mention as they are devoured by a Tyranid hive fleet. This Dungeons expansion for Munchkin Warhammer 40,000 brings 20 of these worlds to your table to add more Chaos (and fun) to your grim, dark games.

This is an expansion for Munchkin: Warhammer 40.000. It is not a stand-alone game.