Privacy policy

Who is responsible

Sprixe is a free, non-commercial personal project by Thibaut Lion, based in France, who is the data controller for the processing described here. Contact: lion.thibaut@gmail.com.

Audience measurement

All three sites use Vercel Web Analytics to count visits. It sets no cookie and stores nothing on your device. A visitor is recognised by a hash of the incoming request, which Vercel discards after 24 hours. Each page view records the time, the page, the referring site, an approximate location (country, region, city), your operating system, browser and device type. Results are only seen as aggregated statistics.

Neo Studio also counts a few steps of the way through the tool, once per browser session each: opening or creating a project, the first edit, importing an asset, running a build (its outcome and duration), running the emulator, exporting, publishing, and opening or remixing a published game. These events carry a template or format name at most — never the name, content or identifiers of your project.

Purpose: knowing whether the tool is used and where people get stuck. Legal basis: our legitimate interest in improving a free tool (GDPR art. 6(1)(f)).

Compiling and publishing in Neo Studio

Compiling. When you build a game, its source code and assets are sent to our compile server, hosted by Hetzner in the European Union. They are written to a temporary folder that is deleted as soon as the build ends. The server logs each build's date, size, duration and result — not its content. The same goes for text-to-speech: the text you submit is turned into audio and never logged.

Publishing. Publishing is always your action. The game's ROM, its project, a thumbnail, and the title and author name you entered are stored on a server hosted by Hetzner in the European Union and made public: anyone can play, download and remix them from the game's page and the gallery. They stay online until the game is unpublished. A daily backup copies them to storage also hosted by Hetzner, and unpublishing does not reach those copies on its own: if you ask for a game to be erased, it is also deleted by hand from every backup that contains it.

Your IP address is used by both servers to limit how many requests one visitor can make over ten minutes. It is kept in memory only — never logged or written to disk — and is forgotten when the server restarts.

Legal basis: providing the service you asked for (GDPR art. 6(1)(b)), and our legitimate interest in protecting the servers from abuse (art. 6(1)(f)).

Hosting

The sites are hosted by Vercel Inc. (United States), which receives every request, including your IP address, in order to serve the pages, and keeps technical logs for a limited time. Vercel may process this data outside the European Union; see its privacy policy.

What stays in your browser

The tools store data on your own device, because they cannot work without it: your projects, autosaves and uploaded files (IndexedDB), your language, interface preferences and save states (localStorage), and a note of which usage steps were already counted this session (sessionStorage). None of it is sent to us. You can erase it at any time by clearing this site's data in your browser settings.

PixelLab

Neo Studio can generate graphics with PixelLab, using your own PixelLab API key. The key is stored in your browser only and sent only to PixelLab, together with your prompts. That exchange is between you and PixelLab, under PixelLab's terms of service.

Your rights

You can ask to access, correct or erase your data, to restrict or object to its processing, or to receive a copy of it, by writing to lion.thibaut@gmail.com. To have a published game removed, include its address. Since there are no accounts, we will ask you to prove the game is yours, for instance by publishing from the same project.

If you believe your data is mishandled, you can lodge a complaint with the French data protection authority, the CNIL, or with the authority of your own country.

Last updated: 19 September 2026.