Megaquarium — is an economic simulator that allows you to build your own aquarium. Initially, the player is given several aquariums and several types of fish. Gradually, there will be more and more visitors, the premises will expand, new species of living creatures will open up and it will be necessary to hire a whole staff of employees. Each marine species requires individual attention and care. The Megaquarium includes about a hundred different units of marine fauna: fish, sharks, crayfish, corals, jellyfish and turtles. When filling aquariums with livestock, it is required to settle them in such a way that they can normally interact and coexist with each other.