Privacy and score removal
Chemistry Stacky Block can be played without an account. The game does not ask for an email address, real name, date of birth, school or precise location.
Public leaderboard
When you choose to submit a score, the public leaderboard stores the four-letter arcade name you selected, your score, rows cleared, level and submission time. Do not use your real name. Selecting Don't submit sends no score.
Temporary security information
To prevent spam and fake scores, the score service temporarily stores one-way salted hashes associated with a browser game ID and network address. It does not store the raw network address in the game database. Temporary session and rate-limit records are automatically removed after they expire.
On your device
The game uses browser local storage for your chosen initials, local best score, sound preferences and a random game-client ID. You can remove these using your browser's site-data controls.
Cloudflare Turnstile
A Cloudflare Turnstile safety check is used only when a score is submitted. Cloudflare processes the verification according to its own privacy terms.
Removal requests
To request removal of a leaderboard score, contact the person or organisation that shared this game and include the four-letter name, approximate score and approximate date.