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The Endlessness

Features: the AI Dungeon Master, world by world

A World That Breathes

Your DM narrates vivid scenes, voices every NPC with distinct personality, and weaves a world that remembers. The tavern keeper recalls your last visit. The forest you burned still smolders. Every choice echoes forward.

  • Real-time narration with sensory detail
  • NPC memory and relationships
  • Persistent world state across sessions
  • Adaptive story pacing

Mira the blacksmith doesn't look up from the anvil. "You still owe me for that shield I fixed after your little adventure in the Thornwood. The one where you came back covered in troll blood."

I set a bag of gold on the counter.

She glances at the bag, then at you. A half-smile. "Forty gold covers the shield. The other ten buys you a secret. There's something wrong in the mine north of town. The kind of wrong that pays well if you survive it."

Steel Meets Rules

Initiative. Action economy. Death saves. Concentration checks. This is D&D™ 5e combat run by the book, with every die rolled in the open. When your Paladin crits with Divine Smite, you see every number.

  • Full initiative and turn tracking
  • All 339 SRD spells with complete mechanics
  • Death saves, conditions, hit dice
  • Transparent dice, always
20Attack Roll

Your blade finds the gap in its armor. You pour everything you have into the strike. Golden fire erupts along the edge of your sword, burning through scale and sinew. The creature staggers. It does not get back up.

29 damage

Forge Your Legend

Twelve classes. Nine species. A background you can write yourself. A guided creation wizard handles the math while you handle the story, and 48 ready-made heroes with painted portraits are waiting if you would rather just play.

  • Guided character creation wizard
  • Standard array, point buy, or rolled stats
  • Full equipment and spell selection
  • Backstory integration into the world

Theron Ashwood

Level 5 Human Paladin

STR 16 / DEX 10 / CON 14 / INT 8 / WIS 12 / CHA 16

38 of 42 hit points

The Table and the World

You do not have to play alone.

Two ways to play arrived alongside the solo campaign: a multiplayer table for 2 to 7 players, and Living Worlds, where every campaign in an adventure shares one map and one clock.

Bring Your Own Friends

Open a table and everyone plays their own hero in one story, with the same Dungeon Master running it for all of you. Send the share link, or invite the address a friend signs in with and the invitation turns up inside their app rather than their inbox. Hosting costs nothing on any plan, and each player spends their own daily turns.

  • 2 to 7 players, the host included
  • Hosting is free on every plan, Free included
  • Play it live, or a turn a day when life is busy
  • Party chat the Dungeon Master cannot read
The Table · 4 of 7Your turn next

  • Theron

    Paladin 5

    HP 44AC 18

  • Sella

    Rogue 5

    HP 31AC 15

  • Ivrin

    Druid 4

    HP 27AC 14

  • Maro

    Wizard 5

    HP 22AC 12

Everyone sees the same story

A World That Keeps Score

Choose Living World when you start a campaign and you play your own story inside a version of that adventure shared with everyone else playing it. The bridge another hero burned is still down when you get there. The clock runs at real speed, so a three-day journey takes three real days, and nothing moves in that world unless a player moves it.

  • One shared map and calendar per adventure
  • A clock that runs at the speed of the real one
  • Keep more than one hero in the same world
  • Publish a champion others can challenge
Farthreshold · shared clock

Day 41, 03:12

The same hour for every hero in this world

Long rest · 5h 48m remaining

While you were away

  • The Bridge of Kites is down. Someone burned it four days ago.
  • The arena's standing champion is a Goliath called Vahl.
Host a table freeStart a Living World

The Rules

Run by the book.

This is D&D 5e as written, enforced from the SRD 5.2.1. When you push past a rule, the DM tells you which one, and why.

Initiative.
Turn order rolled and enforced. Actions, bonus actions, and reactions all counted.
Spellcasting.
Slots spent, concentration checked, rituals honored. All 339 SRD spells.
Conditions.
Grappled, frightened, prone: applied automatically and visible on your sheet.
Dice.
Every roll in the open, with its formula, its die, and its total. No fudging, ever.
Modifiers.
Every number names its source: the spell, the feat, the buff behind it.
Feats and Masteries.
Savage Attacker, Piercer, Vex and Topple: resolved mechanically, not narrated.

Owlbear

Large monstrosity, unaligned

Armor Class 13 (natural armor)

Hit Points 59 (7d10 + 21)

Speed 40 ft., climb 40 ft.

STR

20 (+5)

DEX

12 (+1)

CON

17 (+3)

INT

3 (−4)

WIS

12 (+1)

CHA

7 (−2)

Skills Perception +5

Senses darkvision 60 ft., passive Perception 15

Challenge 3 (700 XP, PB +2)

Actions

Multiattack. The owlbear makes two Rend attacks.

Rend. Melee Attack Roll: +7, reach 5 ft. Hit: 14 (2d8 + 5) slashing damage.

One of 330 SRD creatures, run exactly as printed

The Narrator

The story, out loud.

Tap Listen on any turn and the Dungeon Master reads it to you, lighting each word as it is spoken. Or hand over the keyboard entirely.

Now reading · George

The lantern swings once on its chain, and goes out. Somewhere below the stair, something breathes. You have heard it before, on the night you swore you would not come back here, and you told yourself it was only the wind.

The words light as they are spoken

Eight narrators

Audition each of them in Settings and keep the one that suits your world. George reads by default.

Speak your turn

Voice mode reads each turn as it arrives, rolls the dice when the story settles, and takes your action out loud.

On every plan

Narration is included, Free included. It is not an add-on, and listening never draws on your daily turns.

Hear a scene free

Bring Your Own

Your books are playable.

The campaign on your shelf and the character in your drawer are not retired. The Endlessness reads them.

Import a campaign

Upload a campaign you bought, downloaded, or wrote yourself. The Endlessness reads the whole document and builds a private, playable world from it: its places, characters, factions, and quests. Then you pick a hero and step in.

PDFDOCXTXTMDHTMLZIP

On the Adventurer and Legend plans.

Import a character

Photograph the sheet from your last table, even a handwritten one. The Endlessness reads it, rebuilds the character rule-true, and shows you everything for review before you play.

PhotoScanPDFDOCX

Included on every plan.

Play free

The Fixer

When the game breaks.

Software is software. A number comes out wrong, a dice card goes missing, a fight will not advance. There is a wrench beside the send button for exactly that.

The Fixer

“Something wrong at the table? A vanished spell, a stuck fight, dice that never came. Tell me what happened and I will set your game right.”

It reads what actually happened in your campaign, mends what is genuinely broken, and tells you what it changed.

  • It cannot tell your story.

    The Fixer has no way to narrate, roll dice, rest, travel, or move a fight along. Those tools are not on its bench. It repairs the game and hands it back to the Dungeon Master.

  • Nothing is left half-finished.

    A repair interrupted partway through is rolled back rather than left standing, and every applied fix keeps a copy of what it replaced. If one turns out to be wrong, putting it right is simply another fix.

  • It never costs you a turn.

    Fix sessions draw on their own daily pool, from 10 a day on Free to 40 on Legend. Telling us something broke should not cost you the evening's play.

Your First Quest

Playing in Five Minutes

From landing here to standing in a world: three choices, no books required.

1

Choose Your World

Pick a world and the tier that fits: a cosy first delve, a dark frontier, a bronze-age voyage. Or describe your own and the DM treats it as canon.

BrightvaleDark frontier
Old ArmisBronze Age seafaring
The Shattered CrownCosy classic
Your Own WorldDescribed or imported
2

Choose Your Hero

Pick a painted pregen and start immediately, or build your own through the guided creation wizard: the math is handled, the story is yours.

Lt. Audra Vane
Lt. Audra Vane
Corvin Stray
Corvin Stray
Aria Flux
Aria Flux

The full creation wizard if you want the math, or a painted pregen if you want to start now.

3

Cross the Threshold

The dungeon door opens. The DM speaks. Your adventure begins.

You stand at the edge of Thornfield as night falls. Somewhere past the treeline, something howls. The notice in your pocket reads ADVENTURERS WANTED. The ink is still wet.

The Worlds

Choose Your Destiny

Hand-crafted worlds in level-banded campaigns, or infinite freedom. Start at level 1, or walk straight into an epic.

4 authored worlds · 9 playable adventures · levels 1 to 20

Brightvale watercolour

Brightvale

A Dark-Fantasy Frontier

A living darkness called the Umbra devours the world beyond the holy light of the Beacon. Make your name as a Venturer out of the fortress-town of Emberfort, and follow the truth of the Apostasy all the way down. Three campaigns carry you from your first descent to the fall of empires.

“The Umbra stretches to the horizon. Beyond it, nothing returns.”

  • Descent into the UmbraBeginner
  • The Forsaken WorldIntermediate
  • Fallen EmpiresAdvanced
Play this world
Old Armis watercolour

Old Armis

A Bronze Age of Seafaring and Empire

Four hundred years before Brightvale fell, oar-and-sail galleys charted waters that should not exist. Wonder and intrigue above, a cosmic dread waiting past the edge of the map. Sail from the floating sea-city of Pattis, play the great powers of Athregal and Ziramat against each other, and end where mortals contend with life, death, and divinity itself. Four campaigns, all the way to level 20.

“The chart ends in open water. The captain keeps sailing.”

  • The Western VoyagesBeginner
  • Brave New WorldIntermediate
  • Major Political MovesAdvanced
  • Dominion over Life, Death, and DivinityEpic
Play this world
Farthreshold: Arena watercolour

Farthreshold: Arena

A Fighting Pit at the Edge of Everything

The Threshold City is where ten thousand portals empty out, and every road through it ends at the Arena. You begin already signed up, geared, and standing in the fighters' tunnel with the gate going up. Win or lose, the tavern, the bazaar, and the sponsors who watched you fight are waiting on the other side. Fourteen factions, rivals who level as you do, and a record the Bookkeeper keeps in exact numbers.

“The gate is rising, and the crowd is already screaming.”

  • Farthreshold: ArenaAny
Play this world
The Shattered Crown watercolour

The Shattered Crown

A Broken Crown. A Contested Inheritance.

Start in Thornfield, a neglected frontier where an old horror is being dug back up. Explore the Aldari Peninsula and the kingdoms fighting over a broken inheritance. Its dungeons run deep: the Bramble Hollow Den, and a Shattered Keep where Krag the Foul holds Isla Ash captive.

“The crown fragment pulses with a cold light. Something in the dark growls.”

  • The Shattered KeepBeginner
  • The Strongest BearerIntermediate
  • The Crown RemadeAdvanced
Play this world
Your Own World watercolour

Your Own World

Spoken into Existence

Describe any world you can imagine, up to four thousand characters of it, and the DM treats your description as canon. High fantasy, grimdark, comedy, political intrigue: the tone, the era, and the rules of the setting are yours to declare.

“You stand at the edge of a world that does not yet exist. Speak, and it will.”

  • Blank CampaignAny
Play your own world

The Story Continues

The Dice Are Waiting

Your first adventure is free. Your first character takes five minutes. The only thing standing between you and the dungeon is a single click.

What do you do?

Begin Your Quest

Free · No credit card · Plays in your browser