circloO — Play Free Online
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Roll a ball inside a circle that grows every time you reach the top; the whole level is one room that keeps getting bigger and harder.
Play circloO online
circloO belongs to the puzzle and brain shelf on Fireboy and Watergirl. We picked it because it is genuinely good, not because it filled a slot: the pacing is right and the difficulty climbs at a fair rate.
Getting started
Mouse or arrow keys depending on the game; nothing is timed unless the screen says so. Read the whole board before your first move. Press Play above and the game loads in the frame; nothing is installed on your device.
Good to know
- Works on desktop and mobile browsers.
- Free, with no sign-up.
- Report a fault through the contact page and we will fix or replace the build.
FAQ
Questions about circloO
How do I play circloO?
Mouse or arrow keys depending on the game; nothing is timed unless the screen says so. Read the whole board before your first move.
Is circloO free?
Yes. circloO is free to play in your browser on fireboyandwatergirl.me, with no download or account.
Does circloO work on a phone or Chromebook?
It is an HTML5 build, so it runs in any modern browser; a keyboard makes some games easier.
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