It lives in your chat
Play inside a group chat. Type what your character does; Murmur replies with what happens. No app to learn — it's just messages.
AI Dungeon Master
An AI dungeon master that runs your tabletop campaign in a group chat.
Murmur is the DM. You and your friends are the party. Start a campaign, play by sending messages, and Murmur narrates the world and rolls the dice in the open. No game night to schedule, no rules to memorize, no human DM required.
New players get free credits. No subscription, no expiry.
Renn · just now
I check the warehouse door for traps, then try to pick the lock — quietly.
Murmur · DM
The lock is old harbor iron, slick with salt. No traps — just a stubborn tumbler.
Roll me a Sleight of Hand check.
d20 15 +2 = 17
Murmur · DM
The tumbler gives with a soft click. The door swings inward onto crates stamped with the Drownmarket sigil — and a single lit lantern that wasn't there an hour ago.
Sofie · 6 hours later
Wait, someone's still here. I draw my crossbow and cover the doorway.
What you get
Everything a good DM does, minus the scheduling.
Murmur handles narration, rules, NPCs, and dice. You handle the choices. Here's what's actually in the box.
Fully asynchronous
Take your turn at 2am or once a week. Murmur waits, keeps the thread, and picks up exactly where you left off. No game night required.
Multiplayer rooms
Bring the whole party into a shared room. Murmur tracks who did what, keeps everyone's threads straight, and moves the scene when the group's ready.
Dice rolled in the open
Every check, attack, and save is a real roll, shown right in the chat. The DM doesn't fudge — Murmur can't, and won't. You see the math.
A world that remembers
Every choice, character, debt, and consequence persists across sessions. The shopkeeper you robbed remembers. The world never resets.
No rulebook needed
Murmur knows the rules so you don't have to. Describe what you want to do in plain language; it handles the checks, modifiers, and edge cases.
How it works
From zero to adventuring in four steps.
No setup beyond a prompt. Here's the actual flow, start to finish.
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1
Start a campaign
Pick a setting or describe one. Murmur builds the world, the opening scene, and your character sheet.
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2
Message in chat
Say what your character does, in plain words. Invite friends to the room, or play solo.
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3
Murmur narrates & rolls
It describes the result, calls for checks, and rolls the dice in the open — right there in the thread.
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4
The world persists
Walk away. Come back in an hour or a month. Your choices, allies, and grudges are all still there.
Pricing
Pay for what you play. Credits, not subscriptions.
A turn costs credits — Murmur generates a narration and any rolls it needs. Buy a pack when you want; it never expires.
Starter
500 credits
$5 ≈ 1¢ / turn
- Good for a short campaign or a test run
- All features included
- Never expires
Most popular
2,000 credits
$15 ≈ 0.75¢ / turn
- A full party through a long arc
- Best value per turn
- Never expires
Campaign
5,000 credits
$30 ≈ 0.6¢ / turn
- Epic-length campaigns, multiple parties
- Lowest per-turn cost
- Never expires
Free to start No subscription Credits never expire
FAQ
Straight answers.
Do I need to know the rules?
No. Murmur knows the rules so you don't have to. Just describe what your character is trying to do in plain language — it figures out which checks apply, what the modifiers are, and what happens next. If you do know the rules, it'll respect them.
Can I play solo?
Yes. A solo campaign is just a room with one player. Murmur runs the world, NPCs, and dice for an audience of one, exactly the same way it does for a party.
What are credits, and what does a turn cost?
Credits are how you pay. Each turn — Murmur reading the room and producing a narration plus any dice it needs — costs a small number of credits, generally around a credit's worth. Packs start at
500 / $5 and run up to 5,000 / $30. New players get free credits to start, there's no subscription, and credits never expire.Is it really async?
Completely. There's no timer and no scheduled session. Send a message whenever you want — middle of the night, lunch break, once a week — and Murmur responds. Everyone in a room can take their turns on their own clock; the campaign just waits.
Can my friends join?
That's the point. Invite them into the shared room and you've got a party. Murmur keeps everyone's threads straight, tracks who's done what, and weaves your separate actions into one scene.
Will Murmur fudge a roll to save my character?
No. Dice are rolled in the open, shown in the chat, and the result stands. A persistent world means consequences are real — which is what makes the wins feel earned.
Your party's already in the chat. Roll initiative.
Start a campaign in under a minute. Free credits to begin, no card required.