Hydroneer gives players the opportunity to become a real gold digger. There is no plot as such in this game; the only goal is to become as rich as possible. The main character finds himself in territories whose lands are rich in minerals. With the help of water, the player will have to build various mechanisms and develop his empire. It all starts with an ordinary driller, but soon the gamer can build his own factory. The gameplay assumes a first-person view, which allows you to fully immerse yourself in the process. The project is filled with bright colors and funny animation.

The base must be located in a location with the necessary conditions, namely among bodies of water. A pipeline needs to be laid from a lake or river to supply the mechanisms with water. Mechanisms are available for construction only with the required supply of resources. Accordingly, the more a gamer gets, the more opportunities there are. Among the equipment, various metalworking stations are available. In any case, the character can take out a shovel or pickaxe and begin excavating manually. There are also vehicles equipped with drills. If you get bored, you can just get behind the wheel and jump off the ramp.

The open world of Hydroneer is available for exploration. So, the player can visit various locations, including a forest, a city, a castle and much more. The player can take a break from business at any time and admire the scenery. You can sell your loot in a shop, but the metal must first be smelted into ingots. By conducting excavations, you can create a real system of caves, which you can also climb into, the main thing is to find a way out, otherwise you can get lost.