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!

We have the products filtered in the grid below by Accessories, Advanced Fantasy, Classic Fantasy, OSE Adventures, and Rulebooks to help you sort through everything.

If your order consists of only books, the system will provide you Media Mail rates which are considerably more cost effective than regular mail. .

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  • Classic Fantasy
  • OSE Adventures
  • Rulebooks