← Play the game
How to Play
Don't Blink is a reaction time game. It takes about 60 seconds to play a full game
and the rules are deliberately simple — but the trick rounds keep it interesting.
The basics
1
Hit Play. The screen fills with a solid color. Stare at it.
2
Wait. After a random delay between 2 and 6 seconds, the color will change.
3
Click the instant you see the change. Anywhere on the screen counts.
Your reaction time is measured to the millisecond.
4
Repeat for 5 rounds. Your final score is the average of all five times.
Lower is better.
Don't click early. If you click before the color changes, the round resets
and you have to try again. Anticipating doesn't count — you have to actually react.
Trick rounds
On some rounds the screen briefly flashes a slightly different shade before snapping
back to the original color. This is a fake-out. If you click during the fake flash,
you'll see "Too early!" and the round resets.
The fake is designed to test whether you're reacting to genuine change or just
watching for movement. The real color change is always a completely different color —
unmistakably different from the fake flash.
Tip: Relax your focus rather than staring hard. Peripheral vision
picks up sudden color changes faster than direct focus.
Scoring
What to aim for:
| Score |
Rating |
| Under 180ms | Extraordinary — top 1% |
| 180 – 220ms | Excellent — elite level |
| 220 – 260ms | Great — well above average |
| 260 – 300ms | Good — around average |
| 300 – 350ms | Room to improve |
| Over 350ms | Keep practising |
The leaderboard
After 5 rounds, enter your name to save your score to the global leaderboard.
The leaderboard tracks the top 100 scores of all time. Rankings follow standard
competition rules — tied scores share the same rank, and the next rank is skipped.
Tips to improve
- Play on a monitor with a high refresh rate if possible — 60Hz vs 144Hz makes a measurable difference
- Use a wired mouse rather than Bluetooth for less input lag
- Play when alert — fatigue adds 20–40ms to most people's times
- Don't tense up — a relaxed hand clicks faster than a tense one
- Don't anticipate — it results in "Too early!" penalties that tank your average
Mobile players: Tap anywhere on the screen when the color changes.
Touch screens typically add ~10–20ms compared to a mouse click, so don't be
discouraged if your mobile scores are slightly higher.