Cosmological simulations are computer simulations that model the formation and evolution of large-scale cosmic structures, such as galaxies, clusters of galaxies, and the distribution of matter in the universe. These simulations are based on the laws of physics and use supercomputers to calculate the interactions of billions of particles representing dark matter, gas, and other components of the universe. By running these simulations, researchers can study the evolution of the universe, test different cosmological theories, and explore the effects of various physical processes on the formation of cosmic structures. Cosmological simulations have become an essential tool in modern astrophysics and have provided valuable insights into the origin and evolution of the universe.