IN DEVELOPMENT: Old-School Essentials Devils & Demons

A tome of diabolical new content to enrich campaigns with fiendish adversaries and perilous magic. Estimated around 150 pages of content, including:

• 8 demon lords: Avaraz, Bethgor, Drazoggoth, Ghursag, Infernus, Ooyxblix, Phranax, Sillith. Each detailed with their aims, hellish home planes, and minions, plus a full stat block.
• Demon cults: 8 cults of Chaos that serve demon lords, each with new spells available to followers.
• Monsters: A horde of around 50 new demonic monsters, including dozens of AD&D-inspired classics.
• Demonology: Rules for magic circles, summoning demons, demonic pacts, and devilish familiars.
• New character classes and races: The chaos knight, demon hunter, and tiefling.
• Magic items: Artefacts of fiendish power to tempt power-hungry players.
• Campaign guidelines: Advice for running campaigns with demonic elements, including campaign frameworks and adventure seeds.

(Book's final title to be determined.)