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Solo d20 campaigns

An AI Dungeon Master that never forgets.

Real d20 rules. Dice rolled outside the model, so they can't be fudged. A world that remembers the NPC you lied to three hundred turns ago. Play a full campaign tonight, alone, with no group to schedule.

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THE DRAGON PRINCE · FOXDALEHP 8/8 · AC 12 · 15g

Player

>
Seek out the scout Jonah

DM

C:\CHRONICLE>

You find him crouched beside a fence post near the treeline, sharpening a knife with the meditative focus of a man who does his best thinking with his hands occupied. He looks up without surprise, as though he has been half-expecting someone to come.

Jonah“Fort Summershield. Four hours northeast, up on the plateau. Cathrax's kobolds are using it as a staging ground for the road raids — I counted at least half a dozen of them on my last pass.”

He pauses, jaw tightening slightly.

Head to Fort SummershieldVisit Cecil the priest firstAsk Jonah more questions

> ENTER COMMAND..._

THE DRAGON PRINCEHP 8/8

DM

You find him crouched beside a fence post near the treeline, sharpening a knife. He looks up without surprise.

Jonah“Fort Summershield. Four hours northeast. Cathrax's kobolds are using it as a staging ground.”

Head to Fort SummershieldAsk Jonah more

> ENTER COMMAND..._

01 / MEMORY

It doesn't lose the plot at session five.

Every NPC, debt, wound and lie is written to a persistent world state -- not squeezed into a context window. Turn 300 still knows what you did on turn 3.

02 / DICE

The d20 is rolled, not written.

Rolls resolve deterministically outside the model. The DM can't quietly give you the win, and it can't quietly take it away. Failure means something again.

03 / RULES

Actual d20 fantasy mechanics.

Attack rolls, saving throws, spell slots, conditions and rests are tracked and enforced on a real character sheet. This is a game, not improv with a fantasy skin.

// Available campaigns

Choose your world. The DM is always ready.

Browse all 9→

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

Gribbit's Agency

Gribbit's AgencyA noir-tinged mystery set in the rain-soaked streets and shadowy docks of Waterdeep. When the Beggar King's network sends a coded warning to the Dragon Friends, they are drawn into a web of conspiracy connecting a charming Barovian aristocrat, a ruined Artificer cult, a secret armada, and a string of deaths that all trace back to one name: Holstmann.

House of Horrors

House of HorrorsA twisted funhouse dungeon crawl through nine deadly rooms designed by Fineas Floop, a deranged bard and sole survivor of the Tomb of Horrors. Behind the ordinary facade of a Waterdeep townhouse at Ten Jester Road, adventurers face cursed weapons, shape-shifting mimics, psychological traps, and a jester who treats their suffering as entertainment. Every room is a puzzle, every treasure is a trick, and the only way out is through.

Shadows over the Moonsea

Shadows over the MoonseaRaids strike the northern Moonsea coast in time with the phases of the moon, leaving terror and ruin in their wake. A raving survivor mutters about the eyes of a dracolich, and a ghostly ship haunts Stormy Bay. Investigate the attacks, uncover a Cult of the Dragon wizard's scheme, and face the infernal crew of a pirate ship damned to the Nine Hells sixty years ago.

Wildemount: Dark Star

Wildemount: Dark StarA dark adventure for a single 1st-level character set in Galgarad, a small hamlet in the Wastes of Xhorhas. A cursed skull stirs beneath the hills, and its foul influence has turned a handful of villagers into shambling husks. Investigate the Keeper's negligence, brave the hidden vault, and destroy the Dark Star before the hamlet falls.

Chalice of the Mountain God

Chalice of the Mountain GodBeneath the forested peaks above the village of Greywood, an ancient temple hides secrets that have already claimed one lord and could claim many more. Armed with little more than a healer's kit and a cautious blessing from a local scribe, your party must descend into cavern darkness where the dead do not rest and the stone itself hunts. What you find in the depths will determine whether Greywood mourns or celebrates.

Heartburn

HeartburnWhen a village burns to ash after an agricultural fair, the investigation leads from a corrupt magistrate to a hidden temple beneath a quarry. Uncover the cult of the Eternal Flame before their fiery ambitions consume the Dessarin Valley.

Oracle of Aegis Isle

Oracle of Aegis IsleA Greek isle of secrets, sacrifices, and sport. Unravel a murder conspiracy during the Oracle Games before the High Priestess completes a ritual that will doom her own daughter. Levels 2-4.

The Dragon Prince

The Dragon PrinceA red dragon wyrmling named Cathrax has attacked the village of Foxdale to lure adventurers to his lair. Brave the kobold-infested tunnels of Black Mountain and confront the cunning beast before his ambitions grow beyond control.

Winter's Splendor

Winter's SplendorA Midwinter Gala at Cassalanter Villa turns sinister when fiends of Asmodeus crash the festivities. Uncover a dark family secret in the City of Splendors.

// How it works

Three minutes to your first roll.

01

Roll a character

Pick a class and background, or take a pregen and start swinging. Your sheet is live from turn one.

02

Choose a campaign

Nine full adventures, from a noir Waterdeep mystery to a dungeon crawl designed to kill you.

03

Type what you do

Plain English. The DM narrates, the dice decide, and the world remembers. Close the tab and pick it up next week.

// Pricing

Start free. Upgrade when the world gets big.

Every hero starts somewhere. Pick the tier that fits your quest.

Commoner

COMMONER

Free

See what the tavern has to offer. No coin required.

✓Play The Dragon Prince

✓25 turns / month

✓AI Dungeon Master

✓Persistent world memory

✓Deterministic dice rolls

Adventurer

ADVENTURERPOPULAR

$9.99/month

For those who want to explore more than one world.

✓Access to all campaigns

✓3 active campaigns

✓350 turns / month

✓New Game+ character porting

✓AI Dungeon Master

✓Persistent world memory

✓Deterministic dice rolls

✓Priority support via Discord

Start Adventuring

Hero

HERO

$24.99/month

Unlimited potential. Multiple worlds. Full power.

✓Access to all campaigns

✓10 active campaigns

✓900 turns / month

✓New Game+ character porting

✓AI Dungeon Master

✓Persistent world memory

✓Deterministic dice rolls

✓Customizable dice skins

✓Priority support via Discord

C:\> READY TO PLAY? [Y/N]

Begin your quest.

Persistent world memory. Deterministic dice rolls. Campaigns that stay coherent past session 5.

Start a free campaign →