Privacy policy

Who we are

Liminal Walker (liminalwalker.app and the iPhone and iPad app) is published by Martin Brix, independent developer, Slovakia. Contact: info@algernon.app.

No account, no cookies, no ads

Liminal Walker needs no account or e-mail, sets no cookies, shows no ads and doesn't track you across other apps or sites. Your device keeps a random anonymous ID, your progress and your settings. Other walkers see only a short code derived from it (#ABCDEF) and the name you choose.

What we keep

On our server in the EU, under your anonymous ID:

• Your progress: depth, discovery points, the layers you reached and what you found, for the leaderboard and to bring your progress to another device.
• Where you are in the game world (a room's coordinates, never a real-world location), so other walkers see a faint echo where you recently were. Your recent path is kept for 30 days.
• Your display name, if you set one.
• Your Broadcast and terminal messages, for up to 90 days, and your wall notes, for 14 days.
• Reports you make, and reports about your messages or notes with a copy of the reported text, for up to 180 days, to moderate the game.
• Your IP address and device type (operating system, browser, phone or computer), to stop abuse and to understand which devices the game must run on. The IP address is erased after 90 days.

Who receives your data

We don't sell your data. These services process it only for us, under their data processing terms; transfers to the US are covered by the EU standard contractual clauses.

• Supabase (EU): hosts our database.
• Vercel (US): hosts the game and its server, and receives your IP address with every request.
• OpenAI (US): something that lives in the Backrooms sometimes answers in the chat. Its replies are written by an OpenAI language model, which receives the last few messages of that chat channel with the walkers' display names or codes. OpenAI doesn't use them to train its models and keeps them at most 30 days to detect abuse.
• Apple, in the iPhone and iPad app: Game Center, if you sign in to it, for its leaderboard.

Chat and notes

Messages in Broadcast and at the terminals, and notes on the walls, are seen by everyone in the game, under your display name and code. Tap someone's message (⚑ at a terminal, or the buttons under a note) to report it or block its walker. We review reports within 24 hours; a message or note reported by three walkers is hidden for everyone. Objectionable content isn't tolerated.

Children

Liminal Walker isn't meant for children under 13.

Why we may use it

We use your data to provide the game you play (GDPR Art. 6(1)(b)), and keep IP addresses and moderation records on our legitimate interest in protecting the game and its players (Art. 6(1)(f)).

Your rights

Menu (⋮) → Delete my data (tap twice), or typing /forget twice in Broadcast, deletes your name, progress, messages and notes on our server and on your device, and starts you as a new walker. For a copy of your data or anything else, write to info@algernon.app with your code (#ABCDEF, top left in the game). You may also complain to a data protection authority; in Slovakia, the Office for Personal Data Protection (dataprotection.gov.sk).