Zombies, ninjas, dinosaurs and more! The top favourites of internet culture come together in Smash Up, the popular "shufflebuilding" game that redefines what card games can be. Alien-Pirates, anachronistic? We say they're awesome. Just as awesome as Zombie-Robots, Ninja-Magicians, and Trickster-Dinosaurs.And with the Smash Up: Obligatory Cthulhu Expansion, you can mix them with even more factions. Summon Cthulhu with Cthulhu Cultists, take over the world with Elder Things, morph into an Innsmouth mutant, or study all of these as a Miskatonic University researcher!In addition to these four new factions, Smash Up: Obligatory Cthulhu Expansion also includes 8 new Base cards to compete over!Smash Up: Obligatory Cthulhu Expansion is an expansion to Smash Up, and cannot be played without the original Smash Up game.