Infinite Worlds
Every story yours. Every world infinite.
A desktop storytelling game with an AI Dungeon Master that runs entirely on your own PC, with no cloud service and nothing to sign up for. Your adventure never leaves your machine.
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Every story yours. Every world infinite.
A desktop storytelling game with an AI Dungeon Master that runs entirely on your own PC, with no cloud service and nothing to sign up for. Your adventure never leaves your machine.
▾Describe what your character does. The narrator answers with what happens next — written in front of you, word by word, and it remembers.
A full tabletop adventure: dice from d4 to d20, stats, inventory, NPCs, and quest threads — narrated by a model that reacts to anything you try.
The language model lives on your PC. After the first-launch download, no internet is needed — and nothing you write is ever sent anywhere.
A story-state engine keeps your character sheet, allies, and plot threads outside the model's head, so chapter twenty still honors chapter one.
High fantasy, noir, deep space, or a premise all your own — Custom Worlds let you set the stage in a sentence and step inside.
Pick Fast for snappy replies on modest hardware or Best for richer prose — and let an NVIDIA GPU make it seconds-fast.
Host a party from inside the game. Friends join your adventure with a link and a party code — your PC runs the world for everyone.
The same solo game, written for the phone. A narrator that runs on the iPhone itself, or Claude with your own key. No account, and no server of ours either way.
Coming to the App Store
Download one model once, then play with the phone in airplane mode. Ten to choose from in three memory tiers, from Google, Mistral, Alibaba, Nous and the roleplay community. Nothing you write leaves the device.
Paste an API key from Anthropic and the strongest prose narrates your story, billed to your own account. The app asks once before any text leaves the phone, and shows what the last turn cost.
Export a world seed or a whole story from the PC game or the web edition, open it on the phone, and carry on with the sheet, the people and the threads intact.
The support page answers the common questions, and the privacy policy says exactly what does and does not leave your phone.
Screenshots from the desktop edition will appear here as the build takes shape. The iPhone edition’s screens are above.
For the desktop edition: Windows first, and if your PC is from the last decade you can probably play. The iPhone edition’s requirements are above.
| Minimum · Fast narrator | Recommended · Best narrator | |
|---|---|---|
| OS | Windows 10 64-bit (1903+) or 11 | same |
| CPU | Any AVX2 CPU — Intel 4th-gen (2013)+ or any AMD Ryzen | 6–8 cores, ~2019 or newer |
| RAM | 8 GB | 16 GB dual-channel |
| Disk | ~3 GB free | ~8 GB free |
| GPU | none required | optional NVIDIA 8 GB+ — seconds-fast replies |
| Internet | first launch only (narrator download) | same |
The narrator writes at a reading pace on ordinary CPUs — the story streams in as it's told.
The desktop edition is being forged. Join the waitlist and be among the first to step through when the download goes live.
Your email is stored privately and used only for release announcements. Prefer GitHub? Watch the repository instead.