We’ve shared our lives with rats since . . . forever. Rats were here long before we were! Now those rats, and their rodent kin, are gnawing their way into your Munchkin deck. Here are 30 rat-ical new cards that you’ll love! Wield your Weapon of Mouse Destruction against Soc-Rat-es and Win A Rat Race! This is an expansion for Munchkin. It is not a stand-alone game.