The oldest and most influential sci-fi TTRPG of all time meets the world’s most popular roleplaying game, with a complete 5e conversion by World’s Largest RPGs.

This crunchy 5E sourcebook elevates your adventure to new heights with flying mounts for all characters and their adversaries! Variant cover by 2014-era legend Hydro74 is hobby trade exclusive! Plus exclusive play mat, pogs and pawns for tabletop play!

Get a complete guide to how dungeons work, and how an adventurer act in dungeons. "Dungeon Delvers" is packed with new mechanics, items, feats, NPCs, and more...

A moon later, as it sinks and is born anew, an adventure awaits in the streets of Kanrath. A night of hysteria, a night where every second weighs heavier than time should bear.

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!

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!

Get a complete guide to how villains think, work, and act. Masterminds of Crime is packed with new mechanics, items, feats, NPCs, and more...

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!

Enter a World where Capitalism is King. Then, punch it in the face. Monsters of Murka is a Platinum-Best-Selling trilogy of campaign settings for 5e D&D. We've added hundreds of new spells, items, and monsters, all with that over-the-top Murka flavor!

The World's Largest Dungeon is a 1,600+ page, four-book behemoth megadungeon. Experience the Guinness World Record-winning dungeon crawl like never before - fully updated to 5E of the Worlds Most Popular Roleplaying Game!

Even the Dead have tales to tell… Chronicles of the Crossing is a collection of full-length novels, TTRPG Campaign and Setting Guide, and Metal-Infused Musical Score. These novels explore the question any adventurer has had to ask. You died. Now what?

Overclock: A Steam-Powered Campaign Guide introduces Aela, a skybound metropolis alive with steam-driven wonders, for Fifth Edition play, adding rules for airships, clockwork pets, and mechanical upgrades that fuel new adventures in the heart of industry