An old-school style dungeon Zine for OSE (B/X, AD&D), D&D 5e and DCC TTRPGs, inspired by ancient Rome, The Mouth of Mentius is like Caverns of Thracia crossed with Barsoom: a 73-room tabletop roleplaying mini-campaign of classic myth and weird fantasy

Vralkast is a system-neutral city setting - a vertical port built into the sea cliffs of an endless underground ocean by giant hands, populated by monsters of all kinds. Beneath the starworms, city life is a raucous cavalcade of clashing factions.

Through 2025, Nat19 has created quarterly splash books for 5th Edition, featuring new options for players and GMs—now we're funding physical copies in both soft and hardcover formats!

Bring joy to your RPG players and judges by selecting from crowdfunding exclusives! These special editions are all that remain from limited print runs on previous projects. Get them before they're gone forever! Quantities are limited on all pledges!

Sail the galactic seas of Lodestar in a swashbuckling space-fantasy campaign setting for 5e that evokes the magic of Treasure Planet and Spelljammer, finally bringing the glory of "D&D in space" to your table as it was always meant to be!

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!

Memento Mori is a role-playing game in which Players take the role of Drifters, people sick with the plague who, despite their condition and the terrible reality of Medieval Europe, are determined to fulfill their Dream.

Whether you’re a group of local heroes sent to investigate mysterious goings-on in the nearby haunted wood, or famous mercenaries plotting and scheming in the big city, the MCDM RPG makes building adventures and fighting monsters fun.