Simon

Simon is a memory pattern game inspired by the classic 1978 electronic toy by Milton Bradley. The game displays a sequence of colored flashes — green, red, yellow, and blue — and you must repeat the sequence from memory. Each round adds one more color to the sequence, testing how far your short-term memory can stretch. It's a brilliantly simple concept that becomes incredibly challenging.

1. Click 'Start' to begin. Simon will flash one colored panel.
2. Watch carefully, then click the same colored panel.
3. If correct, Simon adds another color to the sequence and replays it.
4. Repeat the growing sequence from memory each round.
5. One mistake and the game is over — your score is the last sequence length you completed.
6. Try to beat your personal best!

• The game starts with a single color flash.
• Each successful round adds one more color to the sequence.
• You must repeat the entire sequence in order, from the beginning.
• The sequence plays faster as it gets longer.
• One wrong color ends the game immediately.
• Your score equals the number of rounds you completed.

• Watch the sequence carefully without distractions.
• Try grouping colors into chunks of 3-4 to aid memory (like phone numbers).
• Associate each color with a position: top-left, top-right, bottom-left, bottom-right.
• Practice saying the colors in your head as they flash: 'green, red, red, blue...'
• Stay calm under pressure — panicking leads to mistakes.

• Classic Simon: Standard rules with four colors and growing sequences.
• Simon Extreme: Colors flash faster and the sequence grows by 2 per round.

• Simon is pure memory training disguised as a game.
• The tension builds naturally as sequences grow longer — each round is a small victory.
• The inevitable mistake is never frustrating because you can always try again. Perfect for quick brain exercise sessions.

Play Simon free in your browser with vibrant color panels and satisfying visual feedback. Track your best score and see how long a sequence you can remember. No downloads needed.

Simon is the ultimate memory challenge in its purest form. Watch, remember, repeat — and see just how far your memory can take you. Quick to play, endlessly challenging.