Old-School Essentials or OSE is an adventure roleplaying game of exploration, danger, monsters, and magic. The game is intentionally rules light, putting the focus of play on imagination, improvisation, and fun. Published by Necrotic Gnome, the rules are optimized for ease of use at the table, with meticulous attention to wording and layout clarity. What's more, Old-School Essentials is 100% compatible with the classic Basic/Expert game from 1981, the most popular edition of the game among connoisseurs of the old-school. Since it’s original release in 2018, the game has since been expanded with content inspired by the ever-popular Advanced 1st Edition rules.
You'll notice [Print + PDF] in many of these product titles, which means you will obtain a complimentary PDF when you order your book(s) from us!
Old-School Essentials rules are available in two formats: Tomes and Individual Books. Tomes combine individual books together into a single volume. Individual Books keep the subject matter separated. Having two formats is beneficial for several reasons. Primarily, single Tomes are great for an individual. However, when in a group it is often easier to share individual books with folks so they can find what they are looking for. We like to keep the Tome with the Referee and the individual books available to share with groups members. Also, those individual books show off more of that amazing Old School Essentials art!
To help steer you through the various Old-School Essentials rules content on this site, as it can get confusing, here is a quick primer:
Old-School Essentials Advanced Fantasy: Player and Referee Tome Set
This set contains two single books that encompass the complete game, including all Classic Fantasy plus Advanced Fantasy content.
Old-School Essentials Classic Fantasy Rules Tome (Second Printing)
This single book contains all the Classic rules and includes: Core Rules, Genre Rules, Cleric and Magic-User Spells, Monsters, and Treasures. The material in this book forms a complete clone of the classic Basic/Expert game, including all rules, classes, spells, monsters, and magic items.
Old-School Essentials Classic Fantasy Player’s Rules Tome
This single book is dedicated to players of the Classic Fantasy rules and is basically the Classic Fantasy Rules Tome with all the Referee information removed.
Old-School Essentials Classic Fantasy Core Books Set
The complete Classic Fantasy rules in five individual books: Core Rules, Genre Rules, Cleric and Magic-User Spells, Monsters, and Treasures. The material in these books form a complete clone of the classic Basic/Expert game, including all rules, classes, spells, monsters, and magic items.
Old-School Essentials Advanced Fantasy Books Set
This set of four books encompass all the Advanced Fantasy rules and is for those who only have the Classic Fantasy game. Includes Advanced versions of Druid and Illusionist Spells, Genre Rules, Monsters, and Treasures.
Old-School Essentials Advanced Fantasy Books – Only the New Set
This is for those who already have the Classic Fantasy game and the first two Advanced Fantasy books (Druid and Illusionist Spells / Genre Rules) and only need the two new Advanced Fantasy books. Includes Advanced versions of Monsters and Treasures.
Old-School Essentials Advanced Fantasy: Druid and Illusionist Spells
This book contains the spells usable by the bard, druid, gnome, illusionist, and ranger classes presented in Old-School Essentials Advanced Fantasy: Genre Rules. NOTE: This will be discontinued as an individual item once the Preorder sets arrive and will be combined in the Advanced Fantasy Books Set in the future
Old-School Essentials Advanced Fantasy: Genre Rules
This book contains seven classic classes (cleric, dwarf, elf, fighter, halfling, magic-user, thief), complete lists of weapons and adventuring gear, extensive lists of vehicles, mounts, and vessels, mercenaries and specialists for hire, rules for stronghold construction. NOTE: This will be discontinued as an individual item once the Preorder sets arrive and will be combined in the Advanced Fantasy Books Set in the future.
If your order consists of only books, the system will provide you Media Mail rates which are considerably more cost effective than regular mail. We have the products filtered in the grid below by Rulebooks, Settings, and Accessories.