Chaosium

13th Age Glorantha - Rules of Play says: Create your group’s unique Gloranthan campaign using 13th Age: the d20-rolling game of heroic fanta...

RuneQuest RPG: Roleplaying in Glorantha Quick Start - Rules of Play says: Welcome to Chaosium’s RuneQuest Quickstart Rules, a booklet that c...

HeroQuest Glorantha RPG - Rules of Play says: The book includes everything you need to have to start a campaign in Glorantha: basic over...

Petersen's Abominations: Call of Cthulhu 7th Edition - Rules of Play says: A collection of five nightmarish modern-day scenarios for the Cal...

Alone Against The Dark: Call of Cthulhu 7th Edition - Rules of Play says: A solo play Call of Cthulhu mini campaign. No Keeper is needed as you ...

Call of Cthulhu 7th edition RPG: Reign of Terror - Rules of Play says: Developed by Call of Cthulhu mastermind Mark Morrison as a secret chapter...

Call of Cthulhu 7th Ed RPG: Down Darker Trails - Terrors of The Mythos in the Old West - Rules of Play says: Down Darker Trails is a new setting...

HP Lovecraft's Call of Cthulhu for Beginning Readers - Rules of Play says: "After the death of his great-uncle, Francis Wayland Thurston delves ...

The Grand Grimoire of Cthulhu Mythos Magic: Call of Cthulhu 7th Ed. - Rules of Play says: Over 550 spells of dire consequences, secrets, and unfat...

Call of Cthulhu 7th Ed: Doors to Darkness - Rules of Play says: Doors to Darkness provides five scenarios written especially for beginning Keepe...

Call of Cthulhu 7th Edition: S. Petersen’s Field Guide to Lovecraftian Horrors - Rules of Play says: Bad dreams involving strange adventures and...