Hidden Door

Building at the intersection of AI and games

Established in 2020, Hidden Door is building a new kind of story game experience, powered by a proprietary generative AI platform, that can adapt any existing work of fiction into an online social roleplaying game.

We're excited to collaborate with storytellers from around the world, to create immersive fan-focused story experiences for everyone.

Check out our open positions

Our Team

We're an intersectional mix of game professionals and AI experts, and a wide range of perspectives, that we’ve recruited to invent a delightful & safe experience for players.

Hilary Mason
Hilary Mason
Co-founder, CEO
@hmason
Matt Brandwein
Matt Brandwein
Co-founder, Product
@mattbrandwein
Brianna McHorse
Brianna McHorse
Machine Learning
@fossilosophy
Chris Foster
Chris Foster
Game Design
@slapworth
Daniel Abensour
Daniel Abensour
Art
@danielabensour
Ryan Micallef
Ryan Micallef
Machine Learning
@MicallefEsq
Lou Huang
Lou Huang
Engineering
@saikofish
Evelyn King
Evelyn King
Engineering
Melody Firing
Melody Firing
Design
@yobochua
Chris Wallace
Chris Wallace
Engineering
@_cjwallace
Amber Cook
Amber Cook
Marketing
@100gamesproject
Rebecca Weiss
Rebecca Weiss
Engineering
@rjweiss

Our Investors

Makers FundNorthzoneBetaworksBrooklyn Bridge VenturesHomebrew
Dan Sturman
CTO, Roblox
Joshua Schacter
founder, del.icio.us

From the Blog

We talk about storytelling, narrative games, building with language AI, and all of the fun of starting a company at the intersection of generative AI and games. The adventures and misadventures of humans and machines!

For even more, join our Discord community!

Sneak Peek: Development Preview

Hello, adventurers! With the release of GPT-4, it's been an exciting week for generative AI and those thinking about the potential and pitfalls of…

By Matt Brandwein
March 16, 2023
Promptcraft

If you’ve been on the internet lately, you’ve seen headlines like this: Generate 500 post ideas in 5 minutes with Chat GPT 10 Chat GPT prompts to save…

By Evelyn King and Amber Cook
March 09, 2023
How does ChatGPT Really Work?

How does ChatGPT work, really? It can feel like a wizard behind a curtain, or like a drunk friend, but ChatGPT is just… math. Let’s talk about how to…

By Hilary Mason
March 03, 2023