On a regular day of diving you discover under water a bottle with a message inside it. That message looks to be a map. You think that you should go where the map points, because who knows, you might find a treasure there. The objective of the game is to find indeed a treasure. You are told even from the beginning of the game how many items you have to find and knowing this, you can play the game more relaxed. You have to find 78 chests, 10 pieces of map, 22 rare fish, that must be caught by you and 10 black pearls. When you start the game, you have 0 on almost every item that you have to discover at the bottom of the sea, except the pieces of map, where you have one piece, from the tutorial shown by the game.
To dive into the ocean, you have to click on a piece of map, to go diving in that speciffic location. Since you have only a piece of map right now, you have to select that piece. You can see the map in the left of the screen and in the right you will see two blank sheets of paper, that are used by the game to tell you how many chests you can discover in this first level of the game and also how many pearls and fish. There are other levels where you are told that you can discover other pieces of map, but this is mentioned in the piece of paper you have at the right of the screen.
For example, in the first level, you will discover 7 chests, 1 rare fish and 1 black pearl. Be careful and always look at the level of oxygen you have because you can get killed by the lack of oxygen. And also, the pressure can kill you. You have to upgrade your equipment, if you want to go further. From location to location, you will find some oxygen supplies, which will help you when you move deeper into the ocean. The level is not ended until you manage to find everything you read on that piece of paper, on the right of the screen, when you started the level.
You have also a clock, next to the oxygen level, where you can see the health status of your diver. You have an area which is white, when you are at the surface, this meaning that your diver breaths naturally, you have a green area, when everything is ok, the level of the oxygen is great in the submarine and also the pressure, a yellow area, when the levels are not that great, but you can survive if you move rapidly to the surface and a red area, which means death in most of the cases. If you manage to climb to the surface, you’re the greatest. You can find chests here, but if you don’t have enough oxygen, I recommend you to move to the surface and only after that, go back and get the chest, because it will make it more difficult to go to the surface, since you are not only carrying yourself, but a chest as well. You have to make some money by collecting the items you were told, in order to upgrade the submarine. You will see how much money you have in the Bank section of the game and also how much your sub is upgraded.
In the upper left corner of the screen, you will see a small map of the area you are in. You cannot make this map larger, it will be modified according to your movements under water. You will see the map as long as you evolve.
