The Perfect Circle
Draw a circle around the dot in one smooth stroke. The moment you lift off, you get a brutally honest roundness score. No undo. Slower is rounder.
Draw a circle
About This Game
The Perfect Circle is the simplest kind of dare: draw a circle by hand, and find out how round it really was. There is no eraser, no second try within a stroke, and no hiding from the number that appears the instant you lift off.
It turns out that drawing a circle is one of those things everyone assumes they can do until a computer measures it. The wobble you never notice — the slight flat edge, the place where your wrist ran out of room — all of it shows up in the score. Getting past 95 by hand feels genuinely satisfying, which is the whole point.
How To Play
- Put your finger, stylus, or mouse on the chalkboard near the center dot.
- In one continuous stroke, draw a full loop all the way around the dot and back to where you started.
- Lift off. Your roundness score appears immediately, along with a ghost of the ideal circle so you can see exactly where you drifted.
- Chase a higher number. Drawing slowly and letting your whole arm move — not just your wrist — is the oldest trick there is.
Why This Exists
Most games reward reflexes or strategy. This one rewards something quieter: control, patience, and the ability to do a very ordinary thing very precisely. It takes five seconds to play and somehow you will play it eleven more times.
It is also a small, honest mirror. You cannot argue with the score, you cannot undo the stroke, and you cannot blame anyone else. There is just you, a line, and how close you came to perfect.
Frequently Asked Questions
What is The Perfect Circle?
The Perfect Circle is a free browser game. You draw a circle freehand in one continuous stroke around the center dot, and the moment you lift your finger it scores how round your circle actually was, from 0 to 100.
How is my circle scored?
The game finds the center of your stroke, measures the distance from that center to every point you drew, and checks how constant those distances are. A truly round circle keeps the same radius the whole way around, so the more your radius wobbles, the lower your score.
Do I need a mouse, or does touch work?
Either works. Draw with a mouse, a trackpad, a finger, or a stylus. A stylus or finger on a touchscreen often feels the most natural, but a steady mouse hand can score just as well.
What is a good score?
Most people land somewhere between 80 and 95 on a good attempt. Breaking 97 by hand is genuinely hard, and a perfect 100 is nearly impossible without cheating. Slower is usually rounder than faster.
Is anything saved or uploaded?
No. Everything happens in your browser. Your best score is stored only on your own device, and nothing you draw is ever uploaded or shared unless you choose to share your score yourself.
Does it work on mobile?
Yes. It works on any modern mobile browser, including Chrome, Safari, and Firefox. Just draw your circle on the chalkboard with your finger and lift off to see the score.
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