Pattern Repeater is a free online memory game inspired by the classic Simon electronic toy. A board of glowing, musical pads flashes a growing sequence of colours and tones, and your job is to play it back perfectly. Each round adds one more step, so the pattern gets longer and harder to hold in your head the further you go.
Every pad has its own colour and note, turning the sequence into a little melody you can hum along to — many players find the sound easier to remember than the lights alone. One wrong pad ends the run. The game plays instantly in your browser on phone, tablet or desktop and remembers your best round, so you always have a streak to beat.
Pattern Repeater is more than a toy — it is a genuine short-term memory workout dressed up as a game, which is why teachers, parents and brain-training fans keep coming back to it. The glossy, colour-coded pads and clear musical notes make it instantly approachable for children, while the faster speeds and six-pad Hard mode push experienced players to their limit. Hit Start and find out how long a sequence you can hold in your head with this free online Simon game.
The toy this game honours, Simon, was created in 1978 by video-game pioneer Ralph Baer and Howard J. Morrison as a refinement of Atari's arcade machine Touch Me, and was launched with a midnight party at New York's Studio 54. Baer deliberately tuned the four tones to a bugle-like chord so that any random sequence would sound musical rather than grating — the very reason humming along genuinely helps you remember.
Memory researchers call the winning technique chunking: short-term memory holds only about four items comfortably, so recoding a twelve-step pattern as four little three-note tunes is dramatically easier than juggling twelve separate colours in your head.
Repeat the ever-growing sequence of pad flashes without a single mistake, and reach the highest round you can.
Press ▶ Start to begin, watch the pads flash, then tap or click the pads in the exact same order. Turn your sound on to hear each pad's note.
Your score is the round number you reach — each completed round adds one step to the sequence. Your highest round is saved as your Best. Easy and Medium use 4 pads at slow and medium speed; Hard speeds things up and adds 2 extra pads for 6 in total.
Chunk the sequence into small groups of three or four, and lean on the musical notes as much as the colours. Staying relaxed matters in free online Simon — rushing your taps causes more errors than a long pattern does.
How many rounds is a good score in Pattern Repeater?
Reaching round 8 is solid for a casual player; regulars who chunk the sequence and use the audio cues routinely pass round 15, and dedicated players go far beyond.
Should I play with sound on?
Definitely — every pad has its own musical note, and melodies are far easier for the brain to hold than a silent colour sequence.
Is Pattern Repeater the same as Simon?
It is an original browser tribute to the classic Simon electronic memory toy: watch the growing sequence of lights and tones, then repeat it exactly — one wrong pad ends the run.
More classic games: Memory Match, Whack-a-Mole, Type Racer, Math Flashcards, Sliding Puzzle, and all 100 free games.