Sonar Puzzle

Sonar Puzzle is a minimalist puzzle game built around one simple idea:
you cannot see the room — but you can hear it.

Each level drops you into a pitch-black grid. Walls are invisible.
The exit is hidden somewhere in the darkness. Your only tool is
sonar — tap anywhere on the grid to send out a pulse, and watch
as the echoes reveal the shapes around you.

Every ping lights up the walls it touches. Every reflection gives
you information. The more carefully you place your pings, the
clearer the picture becomes — until you are confident enough to
make your move.

HOW IT WORKS

Sonar phase
Tap the grid to fire sonar pulses. Ripple rings spread outward
and bounce off hidden walls, marking every surface they hit.
A hot-cold indicator tells you how close each ping lands to
the exit — scorching hot means you are very close, ice cold
means look elsewhere.

Deduce phase
Watch where the echoes land. Build a mental map of the room.
Your ping spots are saved as breadcrumbs so you never
ping the same area twice.

Move phase
When you are ready, switch to move mode. Tap a cell to preview
your destination, then confirm with one tap. If you found the
exit — you win. If not — the level resets and you try again.

FEATURES

- Clean, minimal design that works in light and dark mode
- Hot and cold feedback after every sonar ping
- Pulsing exit marker once revealed — impossible to miss
- Tap-to-preview move confirmation — no accidental inputs
- Levels get progressively harder with more walls and tighter spaces
- No timers, no pressure — pure deduction at your own pace
- No ads during gameplay
- Lightweight and fast — works on any Android device

WHO IS IT FOR

Echoes is designed for players who enjoy thinking before acting.
If you like logic puzzles, deduction games, or anything that
rewards patience and observation, you will feel right at home.

There is no action. No reflex challenge. Just you, the darkness,
and the echoes.

Can you find the exit?