Hidden Door
A place for fans to discover and play together in their favorite worlds.
29 employees · est. 2020 · Brooklyn, United States
PlayFuel
Fueling the Industry, Blockchain-Gaming-Developers.
9 employees · est. 2019 · United States
PlayFuel is the older company (2020 vs 2019); Hidden Door is the larger of the two.
Side-by-Side Comparison
| Metric | Hidden Door | PlayFuel |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2019 older |
| Headquarters | ||
| Headquarters | Brooklyn, United States | United States |
| Employees | ||
| Employees | 29 larger | 9 |
| Industry | ||
| Industry | AI, IT, Information Technology | Blockchain, Crypto, Financial Services |
| Funding Stage | ||
| Funding Stage | Seed | Not tracked yet |
| Total Funding | ||
| Total Funding | $9.00M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 2 | Not tracked yet |
| 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 | Blockchain Gaming, Game Development, In-game Items, Crypto Gaming, Gaming Platform, Earning Through Gaming |
| Website | ||
| Website | hiddendoor.co | playfuel.io |
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 PlayFuel
PlayFuel is a blockchain-gaming platform that aims to revolutionize the gaming industry by providing opportunities for gamers and developers to earn through playing, developing, and selling in-game items. Established in 2019 and headquartered in the United States, PlayFuel operates at the intersecti...
We will tell you when either one moves
BounceWatch watches Hidden Door and PlayFuel for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Hidden Door and PlayFuel — by email.
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Compiled from the BounceWatch company index. We last looked at Hidden Door on 29 May 2025, and PlayFuel on 12 Sep 2024. 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.