The Operating System for Tabletop RPGs

One Universe.
Every Tabletop Game.

The AI co-pilot for Game Masters and world-builders across 40+ RPG systems. Generate campaigns, NPCs, monsters, maps, and more — in any ruleset.

D&D 5ePathfinder 2eCall of CthulhuVampire: The MasqueradeCyberpunk REDAlien RPGBlades in the DarkMothershipTravellerStars Without NumberForbidden LandsDelta GreenSavage WorldsWerewolf: The ApocalypseMage: The AscensionShadowdarkDragonbaneDungeon Crawl ClassicsThe One RingVaesenKult: Divinity LostStar Wars RPGStarfinderCoriolisMutant: Year ZeroFate CorePowered by the ApocalypseGenesysMutants & MastermindsMasks40+ more…D&D 5ePathfinder 2eCall of CthulhuVampire: The MasqueradeCyberpunk REDAlien RPGBlades in the DarkMothershipTravellerStars Without NumberForbidden LandsDelta GreenSavage WorldsWerewolf: The ApocalypseMage: The AscensionShadowdarkDragonbaneDungeon Crawl ClassicsThe One RingVaesenKult: Divinity LostStar Wars RPGStarfinderCoriolisMutant: Year ZeroFate CorePowered by the ApocalypseGenesysMutants & MastermindsMasks40+ more…

The Forge

Everything a table needs, in one hub

Whether you prep for hours or improvise on the spot — Fablesmith has your back.

AI Campaign Studio

Generate entire campaign settings, cities, factions, and story arcs for any system in seconds. From star-spanning empires to cursed backwater villages.

Cities, kingdoms & star systems
Quests, encounters & handouts
In-world newspapers & propaganda
Character voices & session recaps

Universal Rules Engine

Convert any NPC, monster, or item between systems while preserving narrative identity. One click — any world.

World Timeline

Interactive history with forkable content and branching alternate timelines.

Live GM Assistant

Track initiative, conditions, NPC relationships — and generate names, shops, and encounters on the fly during sessions.

Creator Marketplace

Publish and monetize adventures, monster packs, and maps with remix attribution.

Universal Rules Engine

One Character.
Any System.

A vampire elder from Vampire: The Masquerade can become a D&D vampire lord, a Pathfinder undead noble, a Cyberpunk corporate immortal, or a Call of Cthulhu mythos cult leader — personality and story intact. All with one click.

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Source

Ancient Vampire Elder

Vampire: The Masquerade

D&D 5e Vampire Lord

Fantasy

Pathfinder Undead Noble

Fantasy

Cyberpunk Corporate Immortal

Sci-Fi

Cthulhu Mythos Cult Leader

Horror

Pricing

Pick your loadout

Start free forever. Upgrade when your worlds outgrow a single table.

Free

For solo tinkerers getting started

$0/month

  • Core campaign tools
  • 3 supported systems
  • Community content browsing
  • 1 active world
  • Public sharing
Get Started Free
Most Popular

Pro

For active GMs & serious world-builders

$12/month

  • All 40+ supported systems
  • Unlimited AI generation
  • Live GM Assistant
  • AI image generator
  • Creator Marketplace access
  • World Timeline (unlimited)
  • Universal Rules Engine
  • Priority support
Get Started

Your next world is
one click away

Whatever you play, Fablesmith helps you build it, run it, share it, and remix it. Start forging free — no card required.

    Fablesmith — One universe. Every tabletop game.