A BattleMech is a large, piloted robot used primarily in the fictional universe of the BattleTech franchise. These machines are designed for combat and can vary in size, weight, and capabilities, often equipped with advanced weapons and armor. Each BattleMech is operated by a pilot, known as a MechWarrior, who controls the machine's movements and weapon systems during battles. BattleMechs are categorized by their weight class, including light, medium, heavy, and assault types. They play a central role in the BattleTech games, novels, and tabletop wargames, where players strategize and engage in tactical warfare using these formidable machines.