Every other AI DM only runs D&D. SagaForge plays the TTRPG you designed — paste your rules, name your character, start playing. Run a free 10-action playtest or launch a full 3-act autonomous campaign.
These aren't demos. They're real, playable rule sets — mechanically distinct, loaded and ready.
Roll d6 + stat vs DC 4. Crit on 6, fumble on 1. Resources are everything — rest costs shelter, torches burn out. Death is permanent and immediate at 0 HP.
When you act under risk, roll 2d6. 10+: you do it cleanly. 7–9: you do it, but the GM picks a cost. 6−: brace for what happens next. Playbook-free, move-forward design.
Assemble a pool of d6s based on rating. Take the highest. Position (desperate/risky/controlled) sets the stakes before the roll. Effect (limited/standard/great) sets what you actually accomplish.
Paste your game's itch.io URL — we pull the description, rules, and file list, then auto-fill the playtest form. No copy-pasting required.
You've built something. A ruleset with weight and intention. Dice mechanics that mean something. Systems that don't play like anyone else's. But every AI tool on the market locks you into their world, their rules, their genre.
The AI Dungeon Master category is a $1.2B+ market growing at 30% annually — and zero products serve indie TTRPG creators. 30,000+ games on itch.io. Zero AI tooling.
Three things AI Dungeon Masters do. We do them for YOUR system.
Upload your dice system, stat blocks, combat mechanics. Our AI reads your rules — not generic ones — and enforces them in every encounter.
NPCs that remember your character across 40 sessions. Locations that persist. Faction grudges that compound. No drift, no resets, no retcon.
Start a session before bed. Wake up to a campaign that moved without you. NPCs acted, encounters resolved, the world state updated. Your game never stops.
dice: 1d6 + stat mod vs DC stats: Body, Finesse, Mind, Presence death: 0 HP = dying, -1 per round fumble: roll 1 on attack = crit fail xp: discover > defeat rest: 1 heal die per shelter // Paste into SagaForge. AI reads it. // Starts running your game.
No D&D. No generic fantasy. Upload the system you built — OSR d6, JRPG 2d6, solo oracle, hexcrawl, whatever you've created — and our AI learns it and runs it. Dice, combat, conditions, advancement. All of it.
For indie creators: this is a playtest environment that runs while you sleep. Watch your rules actually work on a real player. Find the gaps. See what your rules make possible that you didn't design.
itch.io has 30,000+ indie TTRPG titles. No AI tool supports a single one of them.
Run it. Play it. Let it surprise you.