Requires the Chrononauts core card game. This expansion pack contains 13 new Identity cards, plus a new Mission, to mix into your game. If you've grown used to the original Identities in the game, it's great to switch them out for these new ones, or add these in to the mix for some variety. Now you've got to watch out for Crazy Joe, who wins with 13 paradoxes, and remember there's someone besides the Cockroach who wants WWIII.