In Munchkin Apocalypse, every possible natural (and unnatural) disaster has happened. You are a rugged survivor in a world full of people - and things - that want to kill you and take your stuff. So do it to them first!
And what's with all these seals running around? Don't they know the world's about to end? You should keep an eye on that seventh one in particular...
Munchkin Apocalypse will be available in Fall 2012. That should give you a few weeks to play it before the world really ends, at least if the Mayans are right . . .
168 cards, one six-sided die, and a rulesheet. This is a standalone game that can also be combined with Munchkin and all its expansions.