Hidden Door

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Summary

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Foundation Year2020
Country🇺🇸 United States
FoundersHilary Mason, Matt Brandwein
TierFreemium
PlatformsAndroid App, API, Desktop App, Web Browsers
AI Features2D Game Development, 2d Image, 3D Asset Creation, 3D Game Development, AI Gaming
Pricing From$7.99/month
SupportYes (Email, Help Center, Livechat)
Best Used ForAI-powered roleplaying, collaborative storytelling and interactive narrative games.
Affiliate ProgramNo
White LabelNo
APIYes

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Description

Hidden Door is an AI-powered social roleplaying platform built around interactive narrative worlds. Players enter fictional settings, create characters and participate in adventures guided by an AI narrator. Instead of following a fixed game script, the system dynamically generates stories, NPCs, items, locations and events based on player choices. The experience is presented partly like an interactive graphic novel and can be played collaboratively with friends. Hidden Door was founded in 2020 by Hilary Mason and Matt Brandwein. The company has also developed technology and APIs intended to allow creators to build interactive worlds and adapt licensed fictional properties. Its platform is particularly relevant to the emerging category of AI narrative games and AI game masters.

Features

  • AI Narrator
  • AI Game Master
  • Interactive Storytelling
  • AI Roleplaying
  • Multiplayer Adventures
  • Character Creation
  • World Building
  • NPC Generation
  • Item Generation

Free Plan & Pricing

Free Tier
Free
Unlimited stories
Unlimited turns
Up to 5 catalog worlds
Character creation
Item creation
Location creation
Achievements
Limited character conversations
Paid Plans
$7.99/month
Unlimited worlds
Unlimited character conversations
Mature content
Custom cards/prompts
Creator revenue participation reported at 30% of subscription allocation
$19.99/month
Everything in Fan
Atlas world-building studio
World publishing
Creator monetization
Early access to licensed worlds
Creator support
Check Pricing On Hidden Door website
Refund Policy
No prominent universal refund policy found. Subscription cancellation terms apply. User stories/progress reportedly remain after cancellation, subject to plan restrictions.

5 Ratings

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5app.ai Rating

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AI Review

[3/5]

Public search results do not clearly verify that the reviewed businesses are the same company as www.hiddendoor.co. The available results are mostly for unrelated salons, bars, florists, and a hidden-door product store, so there is not enough reliable independent feedback to give the website a strong rating.
Sources:- Yelp.com, Yelp.com, Glassdoor.com

Last Fetched Date: October 1, 2026, 1:16 pm
Our Expert's Opinion

[4.7/5]

Hidden Door is one of the more distinctive tools in the AI gaming category because it treats AI as the game master, not merely as an asset generator. The player isn't just chatting with an AI character; choices can change the story, characters, locations and events, creating a more game-like experience. Its social element is also important because friends can participate in the same evolving narrative. I particularly like its focus on licensed fictional worlds and creator-built worlds because it gives the technology a stronger gaming structure than generic AI roleplay applications. The biggest limitation is that the experience is primarily narrative rather than traditional action/gameplay, so it belongs under AI Roleplaying / Narrative Gaming rather than general-purpose game development.

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