Smash Up: Science Fiction Double Feature is an expansion to the wildly popular card game Smash Up where you take two completely separate genres, smash them up, and try to conquer bases on your way to victory. Smash up is back with even more wild factions in the mix. Science fiction double feature brings four new groups to the base smashing business. This expansion features Time Travelers, Cyborg Apes, Super Spies and Shapeshifters. Science Fiction Double Feature is an expansion to the Smash Up core set. It is still a fully operational battle station for 2 players though! Fully compatible with any other Smash Up product.