Hidden Door
A place for fans to discover and play together in their favorite worlds.
29 employees · est. 2020 · Brooklyn, United States
Ryu Games
Changing the way people make and play games.
11 employees · est. 2018 · San Francisco, United States
Ryu Games is the older company (2020 vs 2018).
Side-by-Side Comparison
| Metric | Hidden Door | Ryu Games |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2018 older |
| Headquarters | ||
| Headquarters | Brooklyn, United States | San Francisco, United States |
| Employees | ||
| Employees | 29 | 11 |
| Industry | ||
| Industry | AI, IT, Information Technology | Entertainment, Gaming, Mobile |
| Funding Stage | ||
| Funding Stage | Seed | Seed |
| Total Funding | ||
| Total Funding | $9.00M | $2.70M |
| Funding Rounds | ||
| Funding Rounds | 2 | 6 |
| Services | ||
| Services | Development of an immersive roleplaying game that expands on existing worlds from books, movies, and shows | Not tracked yet |
| Target Customers | ||
| Target Customers | Fans of books, movies, and shows interested in interactive and immersive experiences | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Game Technology, Narrative AI, User-generated Content, Role-play Gaming, Social Gaming, Mobile Gaming, Game Development Tools, Cloud, Consumer Product, Distributed Systems, MMO | Mobile Gaming, Cash Tournaments, Game Monetization, Esports, Competitive Gaming, Game Publishing, Real Money Gaming, Gaming Technology, Player Engagement, Gaming Platforms, In-app Competitions, Game Developer Solutions, Interactive Entertainment, Gaming Innovation |
| Website | ||
| Website | hiddendoor.co | ryu.games |
About Hidden Door
Hidden Door is innovatively positioned at the intersection of AI and Information Technology, focusing on the entertainment sector. Founded in 2020 and headquartered in the United States, the company is a pioneer in game technology, with its flagship offering being a narrative AI platform that transf...
About Ryu Games
Ryu Games, founded in 2018, is poised to redefine the gaming landscape with its innovative approach to competitive play. Adopting the slogan, "Changing the way people make and play games," the company offers publishers a novel way to enhance their games through competitive cash tournaments. This uni...
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Funding, hiring, leadership and stack changes at Hidden Door and Ryu Games — by email.
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Compiled from the BounceWatch company index. We last looked at Hidden Door on 29 May 2025, and Ryu Games on 1 Apr 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.