From the back of the starter: RuinsWorld...the exciting role-playing adventure card game with the best of both role-playing and card games in one package! RuinsWorld lets players build characters to act together as a team against the deck, not just other players. But, while most role-playing games take hours to prepare and sometimes days to play, RuinsWorld can be played in 1-2 hours, with almost no preparation or setup. RuinsWorld can be played solo or up to 4 players.