Its big twist is the large amounts of subclasses to the usual Fighter/Magic-User/ Cleric/ Rogue array, meaning parties can quickly differentiate themselves. Astonishing Swordsmen & Sorcerers of Hyperborea: AS&SH is an AD&D 1e OSR game which is, as the name suggests, inspired by the works of Robert E Howard and co.Uses race-as-class, a d6 system for skill rolls, and replaces the thief with the Specialist,(.) Lamentations of the Flame Princess - A B/X clone with ascending armor class and gore porn.Beyond the Wall: An OSR game with a focus on being able to play with little to no prep, (.).Basic Fantasy RPG: A knock-off of the 1981 B/X set but adds a few modern touches (races separate from classes, ascending AC, several rules clarifications).Leans heavily on Star Wars, with Star Knights and Void Knights, Aristocrats, Hotshots, et cetera.
Dark Dungeons: The knock-off of the Rules Cyclopedia with a few differences.Old School Essentials: It's B/X, sticking as close as possible to the original rules, but with modern editing for easy reading.Blueholme: Blueholme is a knock-off of the 1977 Holmes basic edition of D&D (aka the weird one),.Adventurer Conquerer King: Based on the 1981 B/X set, with a few changes, such as using a d20 for most rolls, adding a proficiency system, and doing 'race-and-class-as-class'(.).