Echo Drift is a free minimalist puzzle game available on Android that challenges players to engage with sonar pulse mechanics. Set within a 6x6 void grid, players tap to activate 'resonance', creating rippling waves that visually represent distance and position. The core gameplay revolves around estimating the distance to a hidden core by observing these waves, which vary in speed from 0.5 seconds to 1.5 seconds.

The game emphasizes logical thinking and spatial awareness, offering a unique blend of puzzle-solving and minimalist design. With its simple yet captivating mechanics, Echo Drift invites players to immerse themselves in a serene yet intellectually stimulating environment, making it an engaging choice for puzzle enthusiasts looking for a fresh challenge.