The Legend of the Five Rings Roleplaying RPG Core Rulebook is a hardcover book published by Edge (Entertainment/ Studio) in 2018. This rulebook is designed for ages 16 and up, and serves as the core guide for players looking to immerse themselves in the world of Legend of the Five Rings. With detailed rules and lore, this book is essential for those wanting to dive into the intricate world of samurai, ninja, and other iconic roles within the game.