"Echo Deep" Game

Pilot a tiny submarine through pitch-black caves deep under the sea. The walls are completely invisible! Click to send out a sonar ping — for a short moment, the walls glow so you can spot them. But watch out: every ping makes noise, and hungry fish will race straight toward you! Your mission: gather pearls, dodge the fish, and hunt for the way out. Clever trick — toss a loud buoy to lure the fish away from your sub! Explore 12 levels packed with tricky currents, stinging jellyfish, and cool upgrades for your submarine.