In every game of Blood Bound, you and a few of your fellow players become a clan of vampires, working together to deduce the identity of your rival clan leader and capture him. Your adversaries—the other players—won’t be idle, however. They’re simultaneously working to identify and eliminate your clan’s leader. You must make your attacks carefully, but hunting in the dark is never as easy as it appears. In fact, you may not know your friends from your foes until it’s far too late.