Players expand their Genesys roleplaying sessions with the Mutant Invasion! roleplaying supplement, designed to complement the Secrets of the Crucible sourcebook. This card pack offers an assortment of tools for both players and Game Masters—from a new playable species, to location cards that can be easily dropped into games, to over thirty adversary cards for Game Masters to keep the stats at their fingertips, to adventure builder cards that make coming up with an adventure fast and easy.