Adventure in any world you can think of, with GURPS , the Generic Universal RolePlaying System – the most flexible roleplaying system you can use. If you haven't yet upgraded to the Fourth Edition .  . . you're a completist . . . or you're looking for a dose of nostalgia, here's the previous edition! It's easy to learn – you can jump right in with the included quick-start rules, pre-designed characters, and an easy-to-play solo adventure. The Basic Set is designed to be "Game Master-friendly," with Table of Contents, Glossary, Appendix, and Index, as well as lots of examples.