Hidden Door

WHERE ROLE PLAY MEETS FAN FIC Let's play! The Call of CthulhuH.P. LovecraftCosmic HorrorMysteryModern-day cosmic horror. Ancient gods are waking up. You probably shouldn't investigate. You will anyway.exclusiveThe Call of CthulhuThe Call of CthulhuH.P. LovecraftModern-day New England, ancient cosmic dreadCults, madness, and things beyond comprehensionInvestigate at the cost of your sanityNo one escapes the Elder Gods unscathedexclusiveThe Call of CthulhuAction HeroactioncinematicQuips, explosions, and impossible stunts.Action HeroSlow-mo cinematic actionOne-liners at peak coolnessPlot armor in full effectEverything conveniently explosiveRomantasyromancefantasySwept away to a new world, where love and danger await.RomantasyForbidden desire, high-stakes adventureLethal political consequencesMagic exists, it costs somethingReads like breathless fanficTo unlock this cardComplete two tales of adventure.The monster wraps a tentacle around your motorcycle. From within the creature's bowels, you can still hear Frank screaming.I tell my dragon to go for the monster's throatSUCCESS!Your wyvern rips the monster's head from its octopus-like body. It emanates a noxious smell, with undertones of gunpowder and petrol.Cosmic Horror Elder GodCthulhu EmergingcanonThe Call of CthulhuCthulhu EmergingThey/ThemSmartGreat Old OneA projection of the elder god, faintly pressing against the boundary to our world.To unlock this cardUncover the conspiracycanonThe Call of CthulhuCosmic Horror Elder GodCthulhu EmergingcanonThe Call of CthulhuCthulhu EmergingThey/ThemSmartGreat Old OneA projection of the elder god, faintly pressing against the boundary to our world.To unlock this cardUncover the conspiracycanonThe Call of CthulhuI jump my motorcycle off the roof, over the creature's disemboweled corpse WELCOME TO Maybe you'll start a book club with Dracula, fight a wyvern on the L Train through Brooklyn, or challenge Mr. Darcy to a duel of wits…in SPACE! Every game is different because you make real choices and the story changes. Swing from the chandelier. Stare into the abyss. Fall in love as many times as you want. Whatever your dream is — play it. The Land of OzL. Frank BaumFantasyWitchesTalking AnimalsA storybook fantasy filled with talking animals, witches, strange creatures, and more!exclusiveThe Land of OzThe Land of OzL. Frank BaumA magical land where anything can talk and nothing is ordinaryWitches both wicked and wonderfulBe a new arrival from our world — or a native of Oz itselfWhimsical adventure with real danger lurking beneathexclusiveThe Land of Oz VengeancerevengeactionThey wronged you. They'll regret it.VengeanceOperatic, cinematic vengeanceJohn Wick-level paybackVengeance always succeedsGrand comeuppance guaranteedTo unlock this cardAnswer death's call in The Crow. Cyberpunkdystopiasci-fiNeon lights, dark futures, corporate overlords.CyberpunkDystopia ruled by megacorpsBionics, body mods everywhereRich in paradise, everyone else scrapes byRebellion, anti-heroesTo unlock this cardTake the nano-drug Nexus. CHROME-GLITTER REQUIEM revengewitchestalking animalsfantasy When the emerald syndicate melts your found-family, you trade ruby slippers for chrome claws and march down the neon brick road for blood. Mr. DarcycanonPride & PrejudiceMr. DarcyHe/HimSmartWealthy and proud gentlemanA wealthy, proud, but ultimately honorable gentleman.To unlock this cardExplore Pride & PrejudicecanonPride & Prejudice + VampireshorrorromanceFangs & blood, stakes & seduction.VampiresVampires and those who hunt them stalk the nightUndead seduction on the menuTo unlock this cardMeet Dracula himself! = VampireMr. DarcycanonMr. DarcyHe/HimSmartWealthy and secretive gentlemanA wealthy, proud, but ultimately honorable gentleman, desperately fighting his vampire nature.To unlock this cardExplore Pride & Prejudicecanon The World Is Yours Pick a world. Add Modifiers to make it your own. Create a character. Your choices shape the story that the Narrator builds — not a script, but a living story world with a full cast of characters. Every playthrough is unique. Yours will be, too. Build Your Deck As you play, you collect cards — characters you've met, places you've been, new modifiers to unleash your imagination, wild moments you've pulled off. Your deck is your story, and it unlocks new possibilities every time you play. Collect the cards you make and bring them into your worlds for higher stakes, louder laughs, and bigger twists. RathgormcanonA Courtship of FrostRathgormWaiting...A mountain city carved deep into stone. Its ice-blooded ruling family are isolationist and suspicious of outsiders.To unlock this cardPlay your first storycanonA Courtship of FrostThe Tin WoodmancanonThe Land of OzThe Tin WoodmanHe/HimSmartA man made of tinA helpful if somewhat creaky fellow.To unlock this cardTravel the Yellow Brick RoadcanonThe Land of OzSaturday Morning CartoonscomedycartoonsZoinks! Jinkies! Jeepers!Saturday Morning CartoonsLighthearted, silly, alwaysCartoon physicsGhosts are probably someone in a maskMr. BingleycanonPride & PrejudiceMr. BingleyHe/HimSmartWealthy and friendly gentlemanA friendly and wealthy gentleman, friend of Mr. Darcy.canonPride & PrejudiceAmsterdamModern-day Amsterdam, where nightclubs and canals set the stage.AmsterdamFormalslow burnregencyScandal at the slightest touch.FormalTouching hands is intimateFormal introductions requiredGlacial, agonizing romanceZombieshorrorsurvivalThey're dead. They're hungry. They're everywhere.ZombiesSociety collapsedOne bite, you're doneEvery day a fight for survivalTrust is a luxuryFrank ThurstoncanonThe Call of CthulhuFrank ThurstonHe/HimSmartAnthropology ProfessorAn anthropologist who teaches at Brown University.To unlock this cardDiscover a cluecanonThe Call of Cthulhushow more! Pride & PrejudiceJane AustenRomanceScandalManners19th century England. Marriage, manners, and free spirits navigating scandal and society.exclusivePride & PrejudicePride & PrejudiceJane AustenRegency England — balls, gossip, and courtshipRomance on your terms: date Darcy, pursue a BennetComedy of manners with real emotional stakesNavigate class, family, and your own prideexclusivePride & PrejudiceModern DaymoderncontemporaryIt's 2026. One of the years of all time. Also, smartphones.Modern DayPresent-day 2026Smartphones, social mediaRivals to Loversenemies to loversromanceFrom bitter rivalry to burning passion.Rivals to LoversCompetition masks attractionForced cooperation, unexpected chemistryThe monster wraps a tentacle around your motorcycle. From within the creature's bowels, you can still hear Frank screaming.I tell my dragon to go for the monster's throatSUCCESS!Your wyvern rips the monster's head from its octopus-like body. It emanates a noxious smell, with undertones of gunpowder and petrol.Mr. DarcycanonPride & PrejudiceMr. DarcyHe/HimSmartWealthy and proud gentlemanA wealthy, proud, but ultimately honorable gentleman.To unlock this cardExplore Pride & PrejudicecanonPride & PrejudiceMr. DarcycanonPride & PrejudiceMr. DarcyHe/HimSmartWealthy and proud gentlemanA wealthy, proud, but ultimately honorable gentleman.To unlock this cardExplore Pride & PrejudicecanonPride & PrejudiceI jump my motorcycle off the roof, over the creature's disemboweled corpse the way I just made Mr. Darcy eat a cheeseburger lmaoooo hahahaha omggg what cards are u using to do that??? World Domination Your favorite moments are shareable. Post your most-loved moments and initiate your friends into original, bizarre new fandoms. Play Now HEY - ARE YOU AN Author? Are you an author, filmmaker, or a professional creative with a fanbase? Let your fans play in your worlds! Fan those flames of creativity and community! We use your existing works to create an amazing experience, and to make it easy. Learn More --- Roleplay meets Fanfiction Established in 2020, Hidden Door is building a new kind of story experience centered on creativity, decision-making and authorship. Players experience their favorite fictional worlds through an online roleplaying game, remixing and combining story elements to craft custom narratives while encountering meaningful challenges. We're excited to collaborate with storytellers from around the world to create immersive, fan-focused story experiences for everyone. Our Team We're an intersectional mix of game professionals and AI experts, with a wide range of perspectives, who are inventing a delightful & safe experience for players. She / Her Hilary Mason Co-founder, CEO @hmason.bsky.social He / Him Matt Brandwein Co-founder, Product @brandwein.social She / Her Brianna McHorse Engineering @bmchorse.com He / Him Chris Wallace Engineering @standard.dev She / Her Rourke Bywater Narrative Design @rourke.bsky.social She / Her Megan Carlsen Art She / Her Hattie Hayes Marketing She / Her Aurora Sofia Vear Art He / Him Harrison Gerard Art He / Him Brady Forrest Business Development @bradyforrest View open positions Our Investors Dan Sturman former CTO, Roblox Joshua Schacter founder, del.icio.us 019d2b75-0daa-7a1c-aeaf-809e6bc8375d --- Let's create the future of fandom, together. Hi! We're Hidden Door, the place for fans to find, discover, and play together in their favorite worlds. If you’ve created a world people love, and are interested in how technology can expand storytelling boundaries, we want to hear from you. Grow your community. Offer your fans deepened engagement with your world on Hidden Door, bypassing lengthy and expensive media development that results in unexercised rights options. Earn money from your existing work. When players choose to tell stories in your world, revenue flows to you as part of our licensing agreement. Protect your IP. Our proprietary architecture allows for controllable and immersive player-driver stories in your world. We do not train LLMs on your content. Join us in reshaping the future of storytelling and delighting fans in ways previously unimaginable. Get in touch 019d2b75-0daa-7a1c-aeaf-809e6bc8375d