Black Hole Square

At a glance

Black Hole Square is a free puzzle and arcade game that plays in your browser on quinten.github.io, with touch controls for phones. On Foundplay since October 15, 2026.

Is Black Hole Square free to play?

Yes. Black Hole Square is free and plays in your browser on quinten.github.io. Foundplay links to it but doesn't host it.

Do I need to download Black Hole Square?

No. It runs in a browser tab, with nothing to install.

Is Black Hole Square safe?

Foundplay checks its link every few hours and gives it a daily safety check (malware blocklists, downloads, crypto miners, parked domains and fake virus warnings), and hides the game at once if that check fails. No check can promise a site is safe: if a game asks you to download something or for a password, leave it.

Can I play Black Hole Square on my phone?

Yes. It has touch controls and plays in your phone's browser, with no app.