About Deep Echo
The research sub's lights failed at 900 meters. Four relics are still down there. So is something that hears everything.
Deep Echo is a free online submarine sonar horror game. Navigate a pitch-black underwater cave using only sonar pings, recover four lost relics and get back to the dock before your oxygen runs out, while something huge listens for every ping. For mobile and desktop.
How to play Deep Echo
- Steer: drag on the left side of the screen, or use WASD or the arrow keys
- Sonar: tap PING, or press Space, to light up the cave for a few seconds
- Find the 4
- relics, then return to the
- dock (the green beacon) to refill oxygen and finish the dive
- Every ping and every burst of speed makes noise, and it follows noise
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