An AI Dungeon Master · 5e campaigns · solo or with friends

Get back to the table.
On your schedule.

Critspark is the AI Dungeon Master built to actually run the game, not narrate one at you. Play a real 5e campaign tonight, solo or with your friends.

ATTACK d20+7 = 20 · CRIT → greatsword 4d6+4 → 24 slashing

"Your blade finds the seam in the wyrm's scales — and the night goes white."

You're on the list. The spark catches soon.

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What makes Critspark different?

Any chatbot can tell you a story.
Here's two things it can't do.

IT'S A REAL GAME

Run by the engine, not the narrator

A tactical map for every fight, with cover, line of sight, and fog over what you haven't reached.

Monsters that focus-fire the wounded, break your concentration, and take cover from your archer.

A check you fail stays failed. You find what your roll finds.

Go down, fail your death saves, and that character is gone.

AND IT STAYS REAL

Kept as records, not held in the AI's head

your sheet, gold & hit points — actual records, read every turn

the people you've met still know your face, and what you did

factions keep their own count and make their own moves

come back sessions later — the world has shifted on its own

The game is holding cards you haven't earned yet.

The table

See the map. Roll the dice.
Watch the monster come for you.

It's a real game

There's a map, and the fog hasn't lifted yet.

Critspark draws a real tactical map for every encounter, with its own cover and line of sight, and fog over what you haven't reached. The monsters are run by a combat AI with no interest in going easy: it focus-fires the wounded, breaks your concentration, and runs when the fight turns against it. A fight that's too soft gets scaled up, not waved through. And death counts. Your crit is a real crit. Your last hit point is really your last.

Critspark tactical battlemap with fog of war: the party's line of sight is lit across jungle ruins while unexplored ground sits under heavy fog, with skeleton tokens closing in — LIVE APP FOOTAGE

And it stays real

That lord you were rude to last session? He still remembers your face.

Your character sheet, your gold, your hit points, the people you've met: Critspark keeps them as actual records, not as something the AI is trying to hold in its head between messages. That's why your fighter doesn't wake up as a different race mid-conversation, your gold doesn't drift to fit the mood, and the lord you insulted still knows exactly who you are the next time you walk into his hall.

Critspark narrative session: long-form storyteller prose beside a character sheet rail with vitality, spell slots, and equipment — LIVE APP FOOTAGE

Solo or with friends

Play tonight

You don't need five adults and four free hours to line up before anything happens. Start a solo campaign right now and go. Or send your friends a link and let Critspark run the table, so nobody has to be the one who never gets to play because they're always the DM. Solo or multiplayer, it's the same game either way.

The forge

Bring the build you remember

Every class is ready to play out of the box. And if the subclass you had your heart set on isn't one of the ready-made ones, the homebrew tools let you build it — subclasses, races, spells, items, backgrounds, feats — and it runs by the same rules as everything else, not as loose text the AI has to interpret.

Playtest with us · 2026

We're letting players in a few at a time.

Critspark is in a small, invite-only beta. We're opening it up slowly, a handful of players at a time, so we can watch how it plays at real tables and fix what needs fixing before the next group sits down. Leave your email and we'll be in touch as spots open up.