Adventurometer
One adventure. Any world. Turn the dial.
Percentile dice. Five worlds. One Keeper.
One adventure, five worlds
The same story, told by five different worlds. Turn the dial and the whole tale transposes: new world, new voice, same beating heart.
Your table, in three steps
Kova Stonebreak
Varax Embercall
Pip Underbough
Brother Anselm
Sable of the ReedsChoose who you’ll be
Take a ready-made adventurer, or build one yourself: nine species, twelve classes, stats rolled live in 3D.
Speak, or type
Say what you do in plain words. No menus, no rules to memorise. Just your intent. Tap the bars to hear the Keeper.
The world answers
The Keeper narrates aloud, the dice are rolled fairly at the table, and your story unfolds.
Watch the dice fall
The Keeper never touches the dice. Every roll is a d100, two dice tumbling as one, a tens die and a units die, resolved by a deterministic rules engine and written to an append-only log you can audit.
Every roll is sealed under a cryptographic commitment before the dice land, then signed and independently verifiable on our public roll dashboard. Fairness you see, not fairness we ask you to trust.
Why players take a seat
Never fudges
Every roll, hit, and coin is resolved by a real rules engine, not improvised by the AI. The story bends; the dice never do.
Alone, or with friends soon
Start solo in seconds. Group voice tables, one link for the whole party, are on the way. Join the waitlist.
Narrated aloud
The tale is spoken in a real voice, with dice you can see and hear. No reading walls of text to yourself.
Ready hero, or your own
Ready-made heroes for every playstyle, or build your own from the ground up, and roll its stats in 3D.
Pick up where you left off
Every adventure keeps its place. Stop mid-scene tonight and carry on tomorrow, with your hero and the story right where you left them.
Fair you can check
Because the engine owns the dice, every roll is signed and verifiable on a public dashboard. See the proof, do not just take our word.
Questions before you sit down
Do I need to know the rules?
Can I play on my own?
Can I play with friends?
Can the AI cheat the dice?
Do I need books or prep?
What system does it run on?
Group play is on its way
Be the first to host a table for your group. One link for the whole party, the whole night narrated aloud. Drop your email and we will let you know the moment it opens.
We will only email you about group play. No spam, and you can leave the list any time.
Worth a read
Why AI Game Masters Fudge Dice (And How to Stop It)
AI game masters do not really roll dice, so outcomes drift towards the story. Here is why, and how to make every roll provable.
Read the piece →Adventurometer vs Old Greg's Tavern: Which AI Game Master Is Right for You?
An honest, side-by-side comparison of two AI game masters across voice, mechanics, dice fairness, memory and multiplayer.
Read the piece →Best AI Game Master Apps in 2026: An Honest Comparison
An honest, scored comparison of the top AI game master apps in 2026, rating voice, mechanics, fairness, multiplayer and memory.
Read the piece →The fire is lit. Pull up a chair.
No party to schedule. Just say what you do.
Closed beta
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