Sean Mountcastle

The spiritual successor of Dark Sun®, for 5.5E. Written by the co-creator of Dark Sun®. The Dragon Kings are gone, and the rains went with them. What remains of Khitus is sand, ruin, and the stubborn few who still believe it can be saved.

MCDM‘s sophomore album featuring: better dungeon crawling, overland travel, a quaint town, the goat, and a lot of adventurers whose ambitions often exceed their skill.

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.

The next great campaign from the team that brought you the Words of Radiance Leatherbound, Isles of the Emberdark, and the record-breaking Year of Sanderson!

Blades ’68 is an official supplement for Blades in the Dark, moving the timeline forward 100 years to the swinging 60s.

"We watched Cthrion Uroniziir try to reduce the timescape into one singular universe, wiping out reality as we know it. She was defeated, and we see her cage every day."

The successor to AEG's award-winning RPG book "Toolbox" and platinum best seller "Ultimate Toolbox" - the World's Largest take on the Ultimate Toolbox is Over 400 pages of the best charts, tables, and seeds of gaming adventure.

From the birth of roleplaying to the discovery of the Forgotten Realms, from the rise of Basic D&D to the fall of Mystara, historian Shannon Appelcline brings you the story of OD&D, Basic D&D, and AD&D 1e in Designers & Dragons: Origins.

In the verdant and tightly-wound habblock known as the Grove, where each alley and every inhabitant is home to old traditions, the Antecedent Solarian Fellowship prepares for the three-day Solstice festival.

A death-game module with a tight time limit and high stakes. Set in the ruined and plague-warped city of The Sink, the wealthy and powerful Hunters come to play a game where the rules are rigged and losing means death.

A time-looping murder mystery set in a sandbox sector of The Dream. Can you solve a murder before it happens, or will time tear you to pieces?

The Green Ghost's oxygen smuggling ring deals in the shadows beneath the roaring fans and events of Beach Breeze Rally DX, an arcade racing game set in a virtual slickworld. Race and join the leaderboard, or investigate and topple the operation.

PROSPERO'S DREAM is the new campaign setting for the Mothership Sci-Fi Horror RPG. It expands and augments the content in the award-winning module, A Pound of Flesh. The boxed set contains three zines, warden's tools, and so much more.

Classic Never Goes Out of Style. The Deadlands Classic 20th Anniversary Edition book reprinted + high-quality AudioBook by professional voice actor Charles Hubbell

Rifts Promise of Power Reforged — discover the lost Rifts video game and play it on the PC with updated graphics & gameplay. Join our crowdfunding campaign to bring this iconic Rifts tactical computer RPG to a new generation!

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!

TERRORS FROM THE COSMOS - SERIES TWO is a boxed set of 5 sci-fi horror adventure pamphlets for the Mothership 1st Edition sci-fi horror RPG game system, and easily adapted for play with any sci-fi RPG system.

An experimental Military-grade pharmaceutical known as PK49 has leaked onto the black market. It is rumored to unlock powerful psychokinetic abilities fueling a race against the clock as street gangs and military factions fight to control the supply.

Work for Arrow Biomed performing extrajudicial abductions of privileged addicts on their behalf of wealthy benefactors. Kick down the door and drag your target out of whatever drug den they’ve ended up in. For a hefty price, that is.

Three brutally chaotic syndicates to hunt down, work alongside, or twist to your will.

A 16-page Mothership RPG module about a resort colony called Midnight, the trouble the Crew will find there, and what'll happen to it all when time runs out.

Death Pays All Debts adds a new tower in the depths of Prospero’s Dream loaded with loot and danger. Enterprising crews robbing the tower can walk away made for life. Unlucky ones will perish in the attempt… or worse.

"Operation Golden Cut" is a sci-fi horror adventure for Mothership RPG. Navigate a war-torn mining moon, steal valuable cache of gold amidst brutal corporate conflict, and survive the horrors of human greed and warfare.

Explore The Iron Hive, an extremely densely populated and largely lawless space station. A place where criminals, bounty hunters, and residents collide. From the forgotten mines to The Jade Market, they all have things to do and stories to tell!