Privacy policy
Updated October 20, 2026
Short and in plain words: what we learn about you on this site and what we do with it.
Who we are
SimSeller is a studio project by Denis Zheleznyak, who is responsible for your data. To get in touch, message on WhatsApp:
What we collect
Your email address — you type it into the form on the home page, or Google passes it to us when you sign in to the backstage.
Along with it: the date and time of the record, how you signed up (the waitlist form or Google sign-in), the page language, your country (worked out from your IP address; the address itself is not stored) and a description of your browser and device (user-agent).
Sign-in with Google
From Google's answer we take only your email address and the mark that it is verified. We have no access to your account, mail, contacts or files, and we don't ask for it.
Why
To keep the game's waitlist, let you into the development backstage, tell you about new backstage posts if you asked for it, and write to you when the game launches. If you take part in a closed test of the game — to see how the game is played (see “Closed game tests” below).
Where it is stored
In Cloudflare storage, which runs this site.
Notifications about new posts
Both are off until you turn them on in the backstage feed. Signing in with Google is not consent to emails.
Browser notifications: we store the address that your browser's push service (Google, Mozilla, Apple or Microsoft, depending on the browser) gave to this browser, its encryption keys, the page language and the date — under the pseudonymous ID, not your email. Each notification is encrypted, so the push service can't read it.
Emails about new posts: when you tick the box, we store the email address you signed in with, the page language and the time of your consent.
Only one thing is sent: that new backstage posts are out — one notification per site update, with the title of the new post (or how many there are). No newsletters, no ads.
To stop: switch it off in the backstage feed or click “Unsubscribe” in any email — the record is deleted right away. If you block notifications for this site in your browser instead, we delete that browser's record at the next mailing, when the push service tells us it is gone.
Cookies and storage in your browser
Our cookie "bs" is set only after you sign in to the backstage, so the site remembers the sign-in for 180 days. It is signed and holds no email: only the sign-in date and a pseudonymous ID derived from your address, which cannot be turned back into it. If you like a post, we store that ID, the post and the date — nothing else.
At sign-in we also set a second cookie, "bsm", with the email address you signed in with. It is sent only to this site's notification settings, so you can turn on emails without typing the address, and expires after 180 days.
Your browser also keeps, in its own storage (localStorage), a mark that you picked the site language by hand; that mark never leaves your device.
If you play a closed test of the game, its cookie “ps” and two more things in that storage come with it: your game save, which stays on your device, and the queue of play records, which is sent to us — see “Closed game tests”.
Closed game tests
If you are invited to a closed test of the game, we record how you play: that is what the test is for — to find where the game is unclear and ask you about it. You are told about it when you sign in to the test; there is no separate consent box.
What is recorded: when you open and leave the game and how long it was open; which screen or panel you are on; the tutorial steps and the “?” help; the game actions you take with their in-game choices (product, quantity, sales channel, loan amount and the like) and the ones the game refused; a short summary of every game day (cash, debts, stock, sales); how a run ended and why; and game errors. Also your device type (phone, tablet or computer, from the screen width) and the game language.
What is not recorded: your email address, name, IP address or browser description; anything you type; mouse movements, keystrokes or what is on your screen. The game runs no analytics or advertising trackers.
Each record carries a player code computed from your email address with a secret key, not the address itself. It is a pseudonym, not anonymity: we can tell whose code it is — that is how we know whom to ask.
Until they are sent, the records wait in your browser's storage (localStorage); every half a minute, and when you leave the page, they go to our database at Cloudflare. If your browser runs short of storage space, these records are cleared from it first, so your save still fits.
Signing in to the test sets the cookie “ps” for 30 days. It holds the email address you signed in with, signed so it can't be altered, so the site can check on each visit that you are still on the test list.
We keep the records until the series of closed tests ends, plus 90 days, and then delete them. To have yours deleted earlier, message on WhatsApp with the address you were invited with:
Your birth year in the game
When you start a business in the game, it asks for your birth year — you can skip it with “I'd rather not say”. The game needs it because real support for young entrepreneurs and the age at which you can start a business both depend on it; it also helps us understand who plays.
The year is kept in your game save, which stays on your device. If you take part in a closed test, it also goes into the test records together with the game action that starts a run — under your player code, not your email (see “Closed game tests”). We don't ask for the day or month, and the year is never shown to anyone outside the project.
Who we share it with
On the backstage sign-in page your browser loads Google's script (Google Identity Services), so Google sees that visit and may set its own cookies under its own privacy policy.
Cloudflare hosts the site and the storage and handles requests on our behalf.
If you turn on emails, Resend delivers them on our behalf and sees your address and the email. Browser notifications travel through your browser's push service, encrypted. The mailing itself runs on GitHub (Microsoft) servers on our behalf; addresses are used there only while sending and are not written to its logs.
We don't sell your data and don't pass it to anyone else. Only the project owner sees the list.
How long we keep it
Until you ask us to delete it. Closed game test records have their own term — see “Closed game tests”.
How to delete it
Message on WhatsApp (the number is in the site footer) with the address you signed up with — we'll delete it from the list by hand and tell you when it's done: