AI Dungeon: Unlocking Boundless Adventures with GPT-Powered Storytelling

AI Dungeon is an immersive single-player/multiplayer text adventure game that leverages the power of artificial intelligence (AI) to generate captivating and dynamic content. It allows players to create and share their custom adventure settings. Released initially as AI Dungeon 2 in December 2019, the game has evolved with updates and improvements to enhance the player experience.

Technical Details

The game employs an AI model, which underwent reform in July 2020, to generate spontaneous storylines based on player inputs. Developed by Nick Walton of Brigham Young University's "Perception, Control, and Cognition" deep learning laboratory, AI Dungeon initially utilized an early version of the GPT-2 natural-language-generating neural network created by OpenAI.

This version allowed for the creation of original adventure narratives. In November 2019, a "full" version of GPT-2 with enhanced capabilities, including support for 1.5 billion parameters, was integrated into the game, resulting in AI Dungeon 2.


AI Dungeon offers players various possibilities within their chosen adventure setting, such as fantasy, mystery, apocalyptic, cyberpunk, or zombies. The game provides multiple options, including character class selection for fantasy settings, allowing players to tailor their experiences. The gameplay revolves around four main interaction methods:

  • Do: Players can perform actions by inputting a verb, driving their character's actions in the story.
  • Say: Dialogue sentences following the "Say" command enable players to communicate with other characters in the game.
  • Story: This command allows players to describe events or progress the story, shaping the narrative direction.
  • See: By providing descriptions, players can perceive events, objects, or characters in the game world.

AI Dungeon adapts and responds to most player actions, and even blank inputs can prompt the AI to generate further content. The game offers features such as undo, redo, and modification of recent events, empowering players to refine the game's narrative.

Additionally, players have the option to guide the AI by specifying elements for it to remember, enhancing continuity and coherence in their play-through.


While AI Dungeon provides an immersive and dynamic experience, it is essential to acknowledge its limitations. The early versions of the game faced challenges in generating cohesive storylines and often offered a finite list of predetermined actions for players to choose from. However, the later iterations, particularly AI Dungeon 2, have significantly improved upon these limitations. 

Use Cases

AI Dungeon presents exciting possibilities for various use cases, including:

  1. Creative Storytelling Writers and storytellers can leverage AI Dungeon to explore innovative narratives and collaborate with the AI model to develop engaging stories.
  2. Role-Playing Games (RPGs) RPG enthusiasts can immerse themselves in rich, AI-generated worlds, experiencing dynamic adventures that adapt to their choices.
  3. Game Development Game developers can utilize AI Dungeon as a source of inspiration or a tool for generating content and exploring different storylines.
  4. Language Learning Language learners can engage in interactive text-based adventures, enhancing their language skills through immersive gameplay.


AI Dungeon combines the power of artificial intelligence with immersive storytelling, offering players a unique and dynamic gaming experience. From its early inception as AI Dungeon Classic to the subsequent versions powered by GPT-2 and GPT-3 models, the game has evolved to provide players with more cohesive narratives, expanded capabilities, and enhanced interactivity.

Whether players seek creative storytelling, RPG adventures, or language learning opportunities, AI Dungeon continues to push the boundaries of text-based gaming with its AI-generated content and endless story possibilities.

Frequently Asked Questions

  1. Is AI Dungeon actually AI?

    AI Dungeon is indeed powered by artificial intelligence. Specifically, it utilizes a model developed by OpenAI called GPT. In AI Dungeon, the AI takes on the role of a storyteller or dungeon master, crafting intricate narratives and responses based on the player's input. The game's dynamic and ever-evolving stories are a testament to the capabilities of modern AI in understanding and generating creative content.

  2. Is there a free AI Dungeon?
  3. Is AI Dungeon safe for kids?
  4. What content is prohibited in AI Dungeon?