ECO: Move with Sound

Every tap lights the dark and shoves you the other way. Climb blind, one sound wave at a time, before the Silence swallows you. No ads, no IAP, fully offline.

You can't see. You can only listen.

ECO is a one-tap arcade climber played in total darkness. Every tap sends out a sound wave: it lights up whatever is near it for half a second, and it shoves the ball away from your finger.

Seeing and moving are the same gesture, and they fight each other. To see what is above you, you have to tap above you. And that pushes you back down.

Below, the Silence is rising. It never stops, and it gets faster the higher you climb.

HOW IT WORKS

• Tap to make a wave. Close taps push hard; far taps barely push, but light up farther.
• Tap below you to rise, to the side to steer.
• Walls bounce. Red spikes kill. Moving blocks show up from 12 m.
• Golden echoes give +5 m and a free wave that lights without pushing.
• Your score is your height. A dashed gold line marks your record in the world.

COLLECT ECHOES Earn echoes for every metre climbed, every golden echo caught and every record broken. Spend them in the shop:

• 6 ball skins: Classic, Ember, Jade, Violet, Gold and the colour-shifting Prism. Your colour paints the ball, its trail, the waves and the particles.
• 4 cave themes: Abyss, Crimson, Emerald and Aurora, each with its own rock, edge and spike palette.
• Boosts armed before a run (Slow Motion, Shield, Calm Tide) plus the Beacon, a permanent upgrade that widens the light of every wave.

BUILT CLEAN

• No ads. No in-app purchases. Everything unlocks by playing.
• No account, no sign-up, no internet. Fully offline.
• Collects no data at all.
• Native code, no game engine: tiny download, easy on the battery.
• Haptics and procedurally synthesised sound. Headphones recommended, but it mixes with your own music.

Rise. Flee. Collect. How high can you go blind?