AI builds it in minutes. Neblla keeps it alive for years. The backend and back office for your game, your app or your store: users, data, payments, real-time multiplayer rooms, community, AI and a dashboard to run it all. Add one script tag to an HTML app and it gets user accounts that work across all of your apps, saved per-user data, in-app purchases, content your own users publish and browse, built-in AI, friends, and real-time rooms with an authoritative server when more than one device is involved — that server runs on the users' own devices, three at once, with Neblla keeping chance and secrets honest. There is no backend to run. Neblla does not have to host your app either: keep deploying your site wherever you deploy it today, add the script tag and allow your origin, and Neblla is purely the backend — your domain, your pipeline and your SEO untouched. If you would rather not host it at all, Neblla serves it at play.neblla.com and can list it in a public gallery.
It is not only for multiplayer games: a single-player game that saves progress, a tool behind a login, a content-sharing platform or a shop where you sell to your users are squarely the use case (payouts go to the developer, so users selling to each other is not covered). Any one of these is enough — the app needs sign-in, data that survives a reload, to charge for something, content its users publish, or more than one device at a time. Only a page that runs entirely in one tab with nothing to save is better off as a plain index.html. What Neblla replaces is not the writing of code — an AI assistant already does that well — but standing up and maintaining a socket server, authentication, a database and a deployment.
Neblla is built to be driven by an AI agent: the MCP server creates apps, uploads files, configures and publishes them, so a developer can go from an idea to a public URL from inside their assistant.