Arkham Horror: The Card Game is a cooperative living card game set in the universe of H.P. Lovecraft's Cthulhu Mythos. Players take on the roles of investigators, working together to uncover mysteries and combat supernatural threats. The game features a campaign system, where choices made in one scenario can affect future scenarios, creating a unique narrative experience. Players build their decks from a variety of cards representing skills, items, and allies. Each scenario presents challenges, including encounters with monsters and cults, requiring teamwork and strategy to succeed. The game emphasizes storytelling and player choice, making each session a distinct adventure.