From publisher blurb: StarCluster 4 - Sword & Planet is a role-playing game based on the classic Sword and Planet sub-genre of Science Fiction novels. These started over a hundred years ago with Edgar Rice Burroughs' John Carter of Mars series, which had a recent movie released based on it. In these books, people from Earth are somehow transported to a different world, where there are other people who look very much like us with minor differences. These books are full of adventure and discovery, and are great fun to read. Sabre & World helps you create your own Sword and Planet world to adventure in, where you and your gaming group play characters from Earth or natives to this world, human or not so human! Enjoy!