Metal Gear Solid 2: Sons of Liberty is an action-adventure game developed and published by Konami. It is the fourth game in the Metal Gear series, and follows the story of a special forces operative named Solid Snake who is sent to a remote offshore facility to stop a terrorist group from seizing control of a powerful new weapon. The game is known for its complex and deep story, which explores themes of identity and loyalty, as well as its improved graphics and gameplay mechanics compared to the previous game in the series. Metal Gear Solid 2: Sons of Liberty was released in 2001 for the PlayStation 2 and was well-received by critics and players, who praised its visuals, storytelling, and gameplay. The game has since been re-released on multiple platforms and is considered a classic of the stealth-action genre.