SONAR

The cavern is dark. Ping to send out a pulse that briefly lights the walls, pearls and lurkers around you — then fades.
WASD or hold the mouse to swim  ·  Space to ping
Collect pearls, find the gate to dive deeper — but every ping wakes the lurkers. Watch your air.

Best: 0  ·  reach the gate to dive to the next cavern

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About Sonar

An underwater cave in total darkness. Press ping and a pulse spreads out from your submarine, lighting up the walls, pearls and the creatures around you for a moment before it all fades. Collect pearls for points and air, find the gate to the next cave, and dive as deep as you can. The catch: every ping wakes up the creatures, and they come for the sound.

How to play

  • Desktop: swim with WASD or the arrow keys (or hold the mouse), Space to ping.
  • Phone: hold to swim towards your finger, tap or use the Ping button to ping.
  • Creatures cost you one of three hull segments. Running out of air also ends the dive.

Tips

  • Ping at a steady rhythm, not in a panic.
  • Keep moving after a ping. The creatures head for where you were.
  • Pearls give back air, so don't leave easy ones behind.
  • When the air warning turns red, head for the nearest gate or pearl.

FAQ

Is it free? Do I need an account? It's free, paid for by ads. No account: you only type a name if you want to post a score.

Does it work on a phone? Yes. Hold to swim, tap to ping. It's best with headphones.

How was it made? There's a short write-up: Designing a game you can't see.

More games like this

  • Castaway — the other game here about navigating on bad information.
  • Strata — also underground, also dark, but you dig your own way out.
  • Swarmfall — things hunting you, with the lights on.

Or read Designing a game you can't see — one of our write-ups on how these games are built and how to play them better.