Old-School Essentials is a streamlined, classic-style fantasy RPG based on early tabletop rules. It focuses on exploration, dungeon delving, dangerous wilderness travel, and straightforward mechanics involving monsters, magic, and treasure.
The Rules Cyclopedia is a definitive guide for the B/X (Basic/Expert) Dungeons & Dragons game, published by TSR in 1991. It is designed to compile all of the rules needed for playing characters from level 1 to 36 into one book, including elements from the Basic, Expert, Companion, and Master (BECM) boxed sets.
