About Echo Deep
Swim a small submarine through dark underwater caves. You can't see the walls. Click to send a sonar ping and the walls light up for a moment. But be careful: fish hear every ping and swim to you. Collect pearls, stay away from fish and find the exit. Throw noisy buoys so the fish go to them, not to you. 12 levels, currents, jellyfish and upgrades for your submarine.
How to play
Move the mouse to steer. Click or press Space to send a ping. The ping shows the walls, pearls and fish. Right click or press E to throw a buoy. You can also move with WASD or the arrow keys. On a phone: drag to move, tap to ping. Collect enough pearls, then swim to the exit. Fish hear pings and fast moves. Near fish, move slowly.
Controls
- Mouse
- W A S D
- Arrow keys
- Space
- Touch
- Drag
Good to know
- Category
- Adventure
- On phones
- Computer recommended
- Price
- Free, no download
- Added
- 2026-10-26
Questions
Is Echo Deep free?
Yes. Echo Deep is free to play on Joyo, with no download and no account.
Can I play Echo Deep on my phone?
It is made for computers with a keyboard and mouse. It may not work well on phones.
What kind of game is Echo Deep?
It is a adventure game. If you like it, try the other adventure games below.
Does Echo Deep save my progress?
Many games save your progress in your browser. If you clear your browser data or change device, the progress is lost.











