From publisher blurb: Introducing The Dales of The Great Wyrm Lake Roleplaying Game, the Core Version of the RPG that introduces the Gamemaster and Players to a world of sword and sorcery fantasy. The Dales of The Great Wyrm Lake uses the D10 Pentra System, of which only a 10-sided die is needed to play this easy to learn and play RPG. Pick up your sword and shield, prepare your Wyrm Magic, concentrate on your Psi, and enter the The Dales of The Great Wyrm Lake. This full version of the core rules allows characters to ascend from 1st to 10th level, with adventures released monthly.