Perfect Circle
Draw a circle with the mouse and get scored on it to one decimal place. Nobody in recorded history has stopped after one attempt.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
How to get the most from it
Perfect Circle sits in Five-Minute Games under Play, filed as instant.
- Just open it. It pays off within seconds, with nothing to read first.
- Use a laptop or desktop computer — we file it as desktop only.
- It works with the sound off, so it is fine on a train or in a quiet office.
- No account needed — you can start without signing up.
- Go in expecting something clever and competitive.
About this category: Games that start the moment the page loads and end before your coffee goes cold. No tutorial, no account, no save file to feel guilty about abandoning.
Good for
- A five-second distraction
- Being impressed by a clever idea
- Chasing a better score
- A quiet break at your desk
- Trying it with zero commitment
Perfect Circle: quick answers
Is Perfect Circle free?
Yes. Perfect Circle is free to use and needs no account.
Do I need an account to use Perfect Circle?
No. You can use Perfect Circle without signing up for anything.
Does Perfect Circle work on a phone?
Not well. We file Perfect Circle as desktop only, so open it on a laptop or desktop computer.
Is Perfect Circle safe for work?
Yes, we file it as safe for work. It also works muted.
How long does Perfect Circle take?
We file it as "Instant": Good within five seconds of loading.
More in Five-Minute Games
All 16 in Five-Minute GamesDraw a circle with one unbroken stroke and get scored on how round it actually was. Nobody beats 97% on a trackpad.
Four keys drive the four thigh and calf muscles of one Olympic sprinter, and none of them cooperate. The original rage game.
- 2 min
- Desktop
Tetris where the blocks collapse into falling sand, so a line only clears when one colour touches both walls. Fiendish and lovely.
- 10 min
- Desktop
Rule a small kingdom by answering yes or no to whoever walks through the door, then watch the consequences quietly pile up.
- 10 min
Same mood: clever
All clever sitesPersonality Lab
AltFProper trait questionnaires with the scoring shown, rather than a quiz that decides you are a golden retriever.
- 10 min
Colorado's library of physics, chemistry and maths simulations, used in classrooms everywhere and free to meddle with.
- 10 min
Interactive tests designed to find the contradictions in your own stated beliefs, the classic being Battleground God.
- 10 min
- Desktop
Photoshop rebuilt in a tab, opening PSD, XCF and Sketch files. Free, and startlingly close to the real thing.
- 10 min
- Desktop
Keep exploring
Category
Time and mood
Have a site of your own? Suggest it for Detour or browse the AltFTool backlinks hub.