Roarii T Anderson

An official OSE supplement of demons, cults, and dark magic.

An Interdimensional Hell-Market for Old-School Essentials. Life is cheap here...but a good soul will cost you.

A new OSE bestiary of ancient horrors! Explore the Qliphoth, demons born from discarded divinity. Includes new spells, lore, and the occult scholars who dare name them. Knowledge is power, but every truth corrupts.

What are you willing to become for eternal life? The Black Market Guide is a 5e/Pathfinder 2e East Asian sourcebook expanding the worldbuilding of Undying Corruption. Subclasses, ancestries, bestiary, and a new world!

New classes, archetypes, origins, systems, and options to breathe new life into martial characters and provide options for Mass Combat and Social Structures.

The definitive guide to the most horrible and anti-life place in all existence.

Seduce the night in a risqué beginner-friendly TTRPG where temptation and terror collide! Play as a seductive Cummancer, navigating an ancient evil. With XXX, DRINK, and BASE modes, customize your journey for any comfort level.

100 new monsters. 300 new boons and charms. Absorb the abilities of monsters using harvested components to conduct magical rituals and enchant yourself with boons and charms representing the monsters' unique abilities. Compatible with 5e 2014 and 2024.

Festival of the Forgotten: Revelations of the Dark Carnival is a 200+ page D&D Player Supplement and Adventure featuring the Dark Carnival in all its eccentric glory with musical score by V is for Villains. Be Evil. But Be Magnificent.

Unleash your inner monster hunter with this compact guide! Master tactics, lore, and gear for epic hunts.

Return to the gothic fantasy that defined a genre with Legacy of Kain: The Book of Nosgoth, the official encyclopedia and archive. Then, forge your own path through Nosgoth in Legacy of Kain: Scourge of the Sarafan, a brutal tabletop role-playing game.

Pilot your own mecha in this high-octane cosmic horror TTRPG inspired by Evangelion, Pacific Rim, and Cosmic Horror.

The Comet Codex is a PDF bestiary including 50 creatures and a set of 8 epic miniatures to bring the terrifying creations of The Comet Lord into your 5e D&D game.

A 5e-compatible collection of intangible rewards for characters; including boons, pacts, titles, trainings, and more

The original book of old-school RPG traps returns for 5E and DCC RPG! A compendium of catastrophic traps, sinister snares, engines of evil, and deadly devices with with full game stats for a folio of fearful fates.

A DnD 5e adventure inspired by the horrors under the mountain. 20+ page PDF packed with new creatures, magic items, NPCs, maps, original art, etc. Oh, and a quest where players explore the Rotting Mines of Copperbend. All for $1!

The perfect campaign to run after a TPK! If death awaits all adventurers, then the salvation of resurrection is always the hope.

The Cypher System is about to become your new favorite TTRPG. With a new Starter Set, a DELUXE Cypher System Rulebook, and two striking new genre books, this campaign has something for everyone—new fans and Cypher System veterans alike!

The cult classic Kobolds Ate My Baby returns with a new edition powered by polymorph. Its faster, easier, and funnier than ever! All Hail King Torg!