Aaron Harmaty

From an empire’s ashes arise cruel warlords, savage hordes, and man-eating giants—all seeking the cosmic steel to become like gods—in this pulp sword & sorcery mega-adventure for Old-School Essentials.

The brand-new Cypher is the fast, flexible, and easy-to-GM RPG for any campaign you want to run. Let's take it to even more new places with cool options to customize your game and really make it soar in this short FLASH campaign!

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.

Explore a blazing fey realm of endless dawn - the home of the jewel-bright dawn elves! Welcome to The Court of Dawn and Flame, a new fey demiplane for Draw Steel. 🌸🔥🌈

Join Section 9 in the official The Ghost in the Shell Tabletop RPG, based on the original manga.

Forged in blood by Professor DM and Roll For Combat, with contributions from Brandon Gillam, this is not another safe fantasy game. This is steel. Fire. Consequence.

Embark on a Tarot adventure! Wield magic and fight tyranny across the Renaissance world in this story-focused TTRPG powered by card divination.

A tabletop RPG of knights vs. aliens in a not-so-fantasy Middle Ages.

Travel across the wandering, sentient landmass of Ophoi on a strange journey to fulfill sacred obligations and find your way back home.

In Force of Extinction, you and your friends play a desperate group of survivors, scavenging what remains as the world itself evolves around you, in this new TTRPG that can make you feel like THE HERO or just a smudge on the bottom of a MONSTER'S CLAW.

A curated anthology of 32-bit era–inspired TTRPGs. MemoryCore brings the great videogame classics of the 1990s to the table, reimagining them for a shared, multiplayer roleplaying experience.

An anthology of role playing experiences that were created by a diverse cast of designers celebrating myths from various cultural heritages. Designers adapted various popular TTRPG systems, each cleverly selected to activate the myth through play.

Guns Blazing is a supplementary product for the TTRPG system Draw Steel. It contains the Gunslinger class, three subclasses for it, and 12 unique firearm kits (usable for other classes as well!).

Over 20 years ago, Green Ronin Publishing first brought gamers to the world of Aldea with Blue Rose: The Roleplaying Game of Romantic Fantasy. Now it’s time to step into the world of Blue Rose again, and explore the Commonwealth of Aldis as young heroes.

Last Sabbath, the award-winning masterless rule-light RPG is back with its most complete version, bringing together restored materials that were previously unavailable, and Lust Sabbath, a new standalone companion game for mature players!

HELLCRAWL is a jumbo sized hexcrawl set in Nethria, the Burning Hell. This infernal module is built for Old-School Essentials and will throw your unfortunate players down into the darkest depths of hell.

Last Hope is a dark Magical Girls game within which you play as teenage or young adult characters chosen to fight corruption in a dream-like version of the world, while also balancing their mundane life, their struggles, and their relationships.

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

A cinematic, tactical TTRPG that will make you feel like a badass, shonen anime character. You play as Operatives from the Devil Division, kicking the piss out of grotesque Devils and Monsters all over 199X Tokyo. Detect. Detain. Destroy.

The most innovative software suite for gamemasters is back with two more RPG apps focused on interacting with your players and managing your table's atmosphere.

FLAIL is an old-school, fantasy RPG where spells act up, weapons fall apart, and characters survive mostly through nerve and sheer luck. Designed for people who like single-session dungeons and short campaigns of 10~15 sessions. Low-prep, max play.

The forge of fantasy role playing, Gary Gygax's legendary dungeon and its environs. Here begins the journey into depths never before reached.

Legendary TTRPG designer Monte Cook, creator of Return to the Temple of Elemental Evil, Ptolus, and more, returns to the megadungeon!

A project from the original creative team of SAD SPACE COWBOY RPG Orbital Blues, featuring a new book about the criminal scum of both the corporate and the outlaw worlds.