Merge Universe: An Idle Game Of Cosmic Scale is a simulation game developed by Metamoki for Android. In this game, you start from the very beginning of the universe and merge your way up to creating galaxies. The game is designed to be idle, meaning that you can gain energy even when you're not playing.

The game's mechanics are based on merging objects to create larger objects that produce more energy. You can gain energy when objects bounce off energy surfaces and create matter from energy. Additionally, every time two objects merge, you gain photons that can be used to create gizmos to maximize your income. The game also allows you to expand your cosmic horizon beyond the known limits of reality, making it an exciting journey through time and space.

Overall, Merge Universe: An Idle Game Of Cosmic Scale is a great game for those who enjoy simulation and idle games. The game is easy to understand and provides a fun and engaging experience for players. The graphics and sound effects are also well-designed, adding to the overall enjoyment of the game.