Metal Gear is a franchise of stealth games created by Hideo Kojima. Developed and published by Konami, the first game, Metal Gear, was released in 1987 for MSX home computers. The player often takes control of a special forces operative, who is assigned the task of finding the titular superweapon, "Metal Gear", a bipedal walking tank with the ability to launch nuclear weapons.
Hideo Kojima is the franchise's creator, and was involved in directing, designing, writing and producing the majority of installments in the main series until Metal Gear Solid V: The Phantom Pain (2015).
Metal Gear are the mecha in the Metal Gear series. In the series, a Metal Gear is a bipedal nuclear weapons-equipped tank. The Metal Gears are typically autonomous nuclear launch platforms which the player must destroy to save the world and complete the game. Often, confronting the latest Metal Gear model is one of the final challenges of each game.
An illustration depicting mass-produced versions of Metal Gear REX in the field of combat
A comparison of Metal Gear designs from the early MSX2 games. From left to right: Metal Gear D (Metal Gear 2), Metal Gear (Metal Gear), Mk. II (Snatcher), and Petit (SD Snatcher).
Solid Snake battling Metal Gear REX in Metal Gear Solid
Metal Gear RAY holding a Harrier aircraft in Metal Gear Solid 2: Sons of Liberty