Carnomorphs adds a new Intruder race along with their models, tokens and specific Event cards to Nemesis. Additionally, it introduces a new game mechanic - Character Mutations. You run away from the cockpit engulfed in flames. You close the bulkhead behind you and take a deep breath - finally, some oxygen! But then, you hear a disgusting noise before you - organic sounds of crushed up bones, snapping tendons, and splashing liquids.
You go forth carefully and lean out of the corridor. Your heart speeds up. It's a bloodbath out there. Everything is splattered in blood; monsters devour corpses, theirs and human. Maybe the burning room wasn't a bad place to spend time after all?