A scientist named Thomas today will have to save his country from the invasion of monsters. To do this, your hero will need to create brave and courageous fighters. You will help him in this new exciting online game Mutant Idle. Your scientist will be visible on the screen in front of you, who will be located on the territory of his laboratory. Your character will have to go to a special machine and create the first mutant. Then you send him into battle. He destroys opponents will earn you points. On them you can create new types of combat mutants in the Mutant Idle game or modify existing ones.