The Cypher System is the game engine that drives the multiple-award-winning Numenera RPG. Its fast-paced narrative design encourages engaging, immersive characters, and no game is easier on the GM-both in prep and at the table. This beautiful, exciting new corebook replaces and expands on the original Cypher System Rulebook. It's improved and different-but it's not a second edition. The rules are not being changed, and all existing Cypher System supplements (including titles for The Strange and Numenera) remain fully compatible with this new corebook.