Echo: Sonar Maze in the Dark
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About this game
The screen is black. You can't see the walls — you can only hear them.
Echo is a maze game unlike any other: a game of sonar, sound, and nerve. Send out a
pulse and the walls around you light up for a heartbeat, then the dark takes them back.
Between pulses you swim blind, listening for the amber beacon that marks the way out —
and for the low hum of the hazards hunting you in the black.
HOW TO PLAY
• Drag anywhere to swim — no on-screen stick, just your thumb.
• Tap to send a sonar pulse. Walls glow, then fade over about two seconds.
• Follow the amber beacon to the exit and descend to the next depth.
• Red pulses are hazards, not the way out. You have three lives.
WHY PLAYERS LOVE IT
• A maze in total darkness — pure navigation by sound and light.
• Procedurally generated: every depth is a new maze, endlessly.
• Directional, distance-aware audio — you can hear where the exit is.
• Minimal, moody, one-handed — made for a quiet moment or a tense one.
• Four unlockable colour palettes: Sonar, Bioluminescence, Ember, Ultraviolet.
• No forced ads mid-dive. No banners. Watch a rewarded video only if you want to.
How deep can you go before the dark swallows you? Dive in.
Echo is a small, handcrafted game from sainilabs. Works offline. No accounts.
Echo is a maze game unlike any other: a game of sonar, sound, and nerve. Send out a
pulse and the walls around you light up for a heartbeat, then the dark takes them back.
Between pulses you swim blind, listening for the amber beacon that marks the way out —
and for the low hum of the hazards hunting you in the black.
HOW TO PLAY
• Drag anywhere to swim — no on-screen stick, just your thumb.
• Tap to send a sonar pulse. Walls glow, then fade over about two seconds.
• Follow the amber beacon to the exit and descend to the next depth.
• Red pulses are hazards, not the way out. You have three lives.
WHY PLAYERS LOVE IT
• A maze in total darkness — pure navigation by sound and light.
• Procedurally generated: every depth is a new maze, endlessly.
• Directional, distance-aware audio — you can hear where the exit is.
• Minimal, moody, one-handed — made for a quiet moment or a tense one.
• Four unlockable colour palettes: Sonar, Bioluminescence, Ember, Ultraviolet.
• No forced ads mid-dive. No banners. Watch a rewarded video only if you want to.
How deep can you go before the dark swallows you? Dive in.
Echo is a small, handcrafted game from sainilabs. Works offline. No accounts.
Navigate a pitch-black maze by sonar. Pulse, listen, find the way out.
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Echo is a maze game unlike any other: a game of sonar, sound, and nerve. Send out a pulse and the walls around you light up for a heartbeat, then the dark takes them back.
Between pulses you swim blind, listening for the amber beacon that marks the way out and for the low hum of the hazards hunting you in the black.
How deep can you go before the dark swallows you? Dive in.
Echo is a small, handcrafted game from sainilabs. Works offline. No accouts.
Between pulses you swim blind, listening for the amber beacon that marks the way out and for the low hum of the hazards hunting you in the black.
How deep can you go before the dark swallows you? Dive in.
Echo is a small, handcrafted game from sainilabs. Works offline. No accouts.
