Echo is a free browser-based puzzle game where you play as a sound wave. Click anywhere to emit sound that radiates outward and bounces off different materials — metal reflects sharply, wood softens, velvet absorbs, and glass shatters when hit hard enough. Your goal is to reach the listener at exactly the right volume. Too loud scares them off, too quiet means they don't hear you. The game features 12 hand-crafted levels with progressive difficulty, persistent star ratings, and a shareable end-of-run summary. Play instantly in your browser — no download, no account required. Created by Inês Reis.
you are a sound.
click to emit. reach the listener.
arrive at the right volume.