This modular hidden traitor board game lets you build and explore the iconic city's dark alleys and deadly catacombs, and face monsters from the Dungeons and Dragons universe like beholders and mind flayers. Based on the award-winning Betrayal at House on the Hill cooperative board game (sold separately), you'll love the game's replayability factor, and return again and again to discover it's never the same adventure twice. Everyone must work with their fellow adventurers to survive the terrors ahead. That is, until some horrific evil turns one person -- or possibly more -- against each other. This cooperative board game is a great idea for game night with friends and family. It's for 3-6 players, ages 12 and up, and takes about 60 minutes to play. Avalon Hill and all related trademarks and logos are trademarks of Hasbro, Inc.