Back 4 Blood

Cooperative first-person shooter where four players fight through campaigns against the Ridden—humans infected by a parasite. You pick from eight Cleaners (immune survivors), each with distinct perks, and face evolving enemy types including towering mutated bosses. A card system lets you build custom decks before missions, changing your loadout and abilities each run. The AI Director adjusts enemy spawns and events based on how you're playing, so no two attempts feel identical. PvP mode flips the script: play as Cleaners or switch to Ridden with their own abilities. Solo's an option if you prefer leading AI teammates. Suits players who want Left 4 Dead's DNA with deck-building layers.