As if Saboteur isn't devious enough, this expansion pack offers even more opportunities for deception. Bridges, doors, and ladders help players tunnel deeper info the subterranean mine, and new characters add competing motives - some help the miners, some aid the saboteur, and one is more interested in crystals than gold. But the key new feature is team play, changing the entire game dynamic. Not a stand-alone game. Requires Saboteur.