Simon
NEWWorks on both desktop and mobile. Tap or click to play.
About This Game
Play the classic Simon memory game free online. Watch the color sequence, then repeat it. Each round adds one more. How long a sequence can you remember?
How to play Simon
Objective: There is no final win screen; you beat your own best by memorizing and repeating a color-and-tone sequence that grows one pad longer every round until you tap wrong.
Press Start. The board has four pads: green top-left, red top-right, yellow bottom-left, blue bottom-right. The center hub shows Watch while the sequence plays and Repeat when it is your turn. The first round flashes one random pad. Each pad lights brighter and plays its own steady sine tone, so you can lean on both the color and the pitch to lock the pattern into memory before you have to reproduce it.
When the hub switches to Repeat, tap the pads in the exact order they lit. The pads only respond during your turn and stay disabled while the sequence plays, so you cannot jump ahead. Repeat the whole sequence correctly and the Round counter updates, there is a short pause, then one new random pad is added and the longer sequence replays. Playback also speeds up as it grows, starting near six-tenths of a second per pad and shortening until about round eighteen.
One wrong tap ends the run instantly. There are no lives, no timer, and no undo. Game Over reports the round you reached, which is the length of the last sequence you finished cleanly. Your highest round saves in the browser as Best, shown beside the live Round count, and the screen adds New best if you tie or beat it. Press Play Again to restart from a single pad. Controls are pointer or touch only, with no keyboard input.
Tips and strategy
Listen, don't just look
Each pad plays a fixed pitch: green highest, then red, then yellow, and blue lowest. Humming the rising and falling tune often sticks better than tracking colors alone, especially once the flashes speed up in later rounds.
Chunk into groups
Long sequences are easier in blocks of three or four than as one flat list. Recall the earlier chunks first, since those never change between rounds, then just tack the single new pad onto the end.
Watch the whole replay
Every round replays the full sequence from the start, not only the new step. Use that free repetition to reinforce the front of the pattern, because the beginning is where a slip usually wrecks a long run.
Brace for round eighteen
Playback speed keeps shortening until about round eighteen, then holds near its fastest. There is no clock on your taps, so the timing pressure is all in the watch phase; survive into that plateau and it stops getting harder.
The history of Simon
Simon was designed by Ralph Baer, often called the father of home video games, with Howard Morrison, and released by Milton Bradley in 1978. Its four colored buttons and repeat-the-pattern play drew on an earlier Atari arcade machine called Touch Me, while the name nods to the children's command game Simon Says. This version keeps that core loop, four pads each tied to a distinct tone lengthening by one step per round, and adds a browser-saved best round to chase.
Frequently asked questions
How is my score counted?
The Round number equals how many pads long the sequence was when you last repeated it correctly. Finish a five-pad sequence and Round reads five. There are no bonus points for speed; the game simply counts sequence length, and your best length is what gets saved.
Is my best round saved?
Yes. Your highest round is stored in your browser's local storage and reloaded next time, shown as Best beside the live Round. Clearing your browser data, or using a different device or a private window, will reset it back to zero.
Why did a pad not respond?
Pads are only clickable while the hub shows Repeat. During Watch, when the sequence is playing back, every pad is disabled so you cannot tap ahead. Wait for the center to switch to Repeat, then enter your taps in order.
Can I play without sound?
Yes. The tones come from the Web Audio system and start when you press Start. If audio is blocked or unavailable the game still runs silently, and you play entirely by watching which pad lights up. Nothing about scoring depends on hearing the tones.
Does the game ever end on its own?
No. There is no maximum round or victory screen. The sequence keeps growing by one pad each round for as long as you repeat it correctly. The run only ends when you tap a wrong pad, which triggers Game Over immediately.