What is stored in your browser
The game saves two things in your browser's local storage, on your device: your progress (the level you are on and your best move count per level) and, if you unlock the full pack, the 25 paid levels. Neither is sent anywhere. Clearing this site's data in your browser removes both.
What is sent when you unlock
When you enter a licence key and press Unlock, the key is sent twice to this site: once to its licence check, which asks Gumroad whether the key belongs to a purchase that is still valid, and once with the request that downloads the 25 levels. Nothing else you type is sent. In your browser the key is held in memory only while this runs: the game does not write it to local storage or to a cookie, and it empties the key box once the levels are stored. That is why you enter the key again on another device or after clearing this site's data.
Analytics, cookies and ads
The game has no analytics script, sets no cookies and shows no ads. It loads nothing from other sites.
The only visit statistics are the host's own aggregate counts, such as how many requests the site receives. They are totals, not a profile of any visitor.
Hosting and payment
The pages are hosted on Cloudflare Pages. Like any web host, Cloudflare processes technical request data such as your IP address in order to deliver the pages. Purchases are handled by Gumroad, which collects the payment and contact details needed for the sale under its own privacy policy; the game never sees your payment details.
Selling data
No personal data is sold or shared for advertising.
Refunds and support
Refund requests and support questions go through Gumroad: use the contact link on your Gumroad receipt, which reaches the seller's Gumroad account. Refunds follow Gumroad's refund policy. A key from a refunded purchase no longer unlocks the levels.
Free and paid levels
Levels 1-5 are free and need no key. Levels 6-30 need a $3 licence key.