Pilot a small submarine over a sandy seabed and sink down to grab each hidden gold coin, at your own pace.
Lost Treasures is a gentle 3D game about searching the sea floor. You steer a small, round submarine with a whirring propeller through clear, shallow water, and gold coins lie scattered across the sand below. Find every one of them and the round is complete.
Nothing chases you and nothing runs out. It is just you, the water and a careful hunt for small orange glints in the blue haze.
Getting started
A line of text at the top of the screen shows the number of coins hidden in this round. Drive forward with W, Up or K, reverse with S, Down or J, and turn with A and D, the side arrows, or H and L. The camera trails behind the submarine, so you always see what lies ahead.
Hold Space, or the dive button on a touchscreen, to sink toward the floor in a stream of bubbles. Let go and you rise back to the surface. After each coin, the message updates with how many are still out there. Clear the last one and you get a short note plus a “Play again?” link, or you can press R.
Why coins slip past you
A coin only counts when the submarine is almost touching it from every direction. Since coins rest just above the sand, you need to be low as well as lined up. Passing over the top of one at the surface does nothing.
The ground also limits how deep you can go. You always hover a little above whatever sits under you, so a hill or pyramid will stop your dive early.
Search tips
- Cruise near the surface while you look around. You can see farther from up there, and you only need to dive once a coin is nearby.
- Brake before you sink. The submarine keeps gliding after you release forward, so a tap of reverse helps you drop straight onto the target.
- Line up your turns first. You travel faster in a straight line, so aim, then hold forward.
- Use your shadow. It falls on the sand right under you, and when it covers a coin you are in position.
- Treat the two pyramids as landmarks to keep track of the areas you have searched.
Who it suits
This is a good choice for a relaxed break or for younger players. The shadows, drifting bubbles and rippling surface make the water pleasant to look at. Because each new round reshapes the hills and moves the coins, it never plays out quite the same way twice.
Controls
| Action | Keyboard | Mouse | Touch |
|---|---|---|---|
| Move forward | W, Up arrow or K | — | Push the round stick on the right up |
| Reverse | S, Down arrow or J | — | Pull the stick down |
| Turn left or right | A / D, Left / Right arrows or H / L | — | Push the stick left or right |
| Dive (release to rise) | Hold Space | — | Hold the round button on the left |
| New seabed and coins | R | Click "Play again?" after the last coin | Tap "Play again?" after the last coin |
Lost Treasures FAQ
Can I play Lost Treasures on a phone or Chromebook?
Yes, as long as the device supports WebGL. On a touchscreen a round dive button shows up on the left, with a stick for steering on the right, and holding the device sideways gives the best view. On a Chromebook, use W A S D, the arrow keys, or H J K L, plus Space to dive.
How long does one round last?
Each round hides somewhere between five and nine coins, and it ends when you have found them all. There is no clock, so a round lasts as long as your search does. Afterward you can start over with a brand new seabed.
Can anything hurt the submarine?
No. There is no air meter, no enemies and no way to fail. If you see red text, it only means you drifted outside the dive area. Turn back, since every coin lies inside that zone.
Why won't I sink any lower?
The submarine always stays a small distance above the ground directly below it. When you float over a hill or one of the pyramids, you stop sinking sooner. Move over lower sand to reach a coin sitting in a dip.
