Simon says

Few games expose memory quite like Simon Says. A sequence of colored flashes plays out, brief and deceptively simple at first, and all you have to do is repeat it back. Then it grows by one. Then another.

The tension builds quietly. Early rounds feel almost relaxed, but somewhere around the sixth or seventh step, the pattern stops feeling familiar and the brain starts to slip. That moment — the split-second hesitation before a wrong tap — is what the game is really about. It rewards sustained attention rather than quick reflexes, making concentration the only tool that matters.

Rooted in the classic electronic toy from the late 1970s, this browser version preserves what made the original addictive: the rhythm of light and tone, the mounting pressure, the private satisfaction of pushing one step further than last time. No frills, no distractions — just you and a sequence that keeps getting longer.