The development of this game inspired Kojima to make an official sequel, Metal Gear 2: Solid Snake. This game earned enough popularity to garner a sequel, again without Kojima's involvement, released outside Japan.

The first game was followed by a heavily modified port for the Nintendo Entertainment System (NES), developed without Kojima's involvement. A few of the series' main characters have also appeared in other Konami games. Related novels, comics, and other dramatizations have also been released. Metal Gear titles have been released on numerous video game consoles, handheld game consoles, and personal computer platforms. The games take place in a semi-fictional universe with stories that involve a special forces agent ( Solid Snake in most games) who is forced to destroy the latest incarnation of the superweapon Metal Gear, as well as having to rescue various hostages and neutralize certain renegade units in the process. The series debuted in Japan on Jwith Metal Gear and is one of Konami's best-selling franchises, with over 26.5 million units sold. Metal Gear is a stealth action video game series created by Hideo Kojima and developed and published by Konami. This includes promotional material such as toys, artwork, and guides.

The Metal Gear series has seen releases on several different media.

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