AI Dungeon

LatitudeReleasedNot disclosed

Web browser
iOS
Android

By Hitesh K12 November 2026

Summary

AI Dungeon is a text adventure in which a language model plays narrator and world. Players pick a ready-made scenario, one made by the community or one they write themselves, then type what their character does or says; the AI replies with the next part of the story, and any turn can be continued, retried or edited. According to the App Store listing, Story Cards and memory features help the AI keep track of details across long stories, and players can share scenarios and play together. The game is made by Latitude and is free in the browser and on iOS and Android, with paid memberships and credits. When we tried it on November 12, 2026, the Original Quickstart scenario started a fantasy adventure in the browser without an account.

How it was made

How it was made: The AI writes the story as you play. AI Dungeon started with Nick Walton, whose idea came out of a March 2019 hackathon and who released AI Dungeon 2 that December as a Google Colab notebook running OpenAI's GPT-2, according to an interview with Game Developer. Each player downloaded the 5 GB model, and the outlet reported that bandwidth bills passed $20,000 within days. His startup, now Latitude, then turned it into a web and mobile game; the iOS app has been on the App Store since December 17, 2019.

Today the game runs on a menu of models rather than one. According to AI Dungeon's help page on its models, many are Latitude's own fine-tunes made with Gryphe Padar: Muse and Wayfarer Small 2 (from Mistral NeMo 12B), Harbinger and Hearthfire (Mistral Small 24B), Nova and Wayfarer Large (Llama 3.3 70B), and Shimmer and Equinox (Gemma 4). Others are third-party models used unmodified, including DeepSeek V4 Flash, V4.1 and V4 Pro, Z.ai's GLM 4.7, 5.2 and 5.3 and Google's Gemma 4 31B, plus community fine-tunes such as Fable (Sao10K's Lunaris, a Llama 3 8B model) and Madness (a Mistral NeMo merge by DavidAU). Free players can choose from eight models, plus the automatic Dynamic Small option, with shorter context and a few daily premium actions; the 70B fine-tunes, Equinox, all GLM models, most DeepSeek models and Gemma 31B need a paid tier, and 'Dynamic' options switch between models automatically. The App Store listing says AI image generators can also illustrate scenes during play, but the help pages we checked don't say which image models are used today, and Latitude doesn't say whether AI tools were used to write the game's code or make its art.