Metroid Prime 3: Corruption is a first-person action-adventure video game developed by Retro Studios and published by Nintendo for the Wii video game console. A part of the science fiction Metroid series, it is the third main installment in the Metroid Prime series. It was released in North America and Europe in 2007 and in Japan the following year.
The story of Corruption is set six months after the events of Metroid Prime 2: Echoes. It follows Samus Aran as she confronts the Space Pirates, who have launched an attack on the Galactic Federation naval base on Norion. While fending off a Space Pirate assault, Samus and her fellow bounty hunters are infected with Phazon by her doppelgänger Dark Samus. After losing contact with the other hunters, the Federation sends Samus on a mission to determine what happened to them. During the course of the game, Samus works to prevent the Phazon from spreading from planet to planet while being slowly corrupted by the Phazon herself.
The player controls Samus using the Wii Remote and Nunchuk devices; the remote is used for jumping, aiming, and firing weapons, while the Nunchuk enables actions such as moving Samus and locking onto enemies. Corruption introduces features new to the Prime series, such as Hypermode, which allows Samus to use more powerful attacks, and the ability to command her gunship. The new control scheme featured in Corruption took a year to develop and caused the game’s release to be delayed several times. The game was first shown to the public at the E3 2005 trade show.
Reception to Corruption has been positive, with several reviews specifically praising the gameplay. More than one million copies of the game were sold in 2007. It was re-released in August 2009 as part of Metroid Prime: Trilogy, a Wii compilation of the three main games of the Prime series with Wii Remote controls. Retro announced that Corruption would be the closing chapter of the Prime series; however, the next main installment, Metroid Prime 4, was announced in June 2017 and is currently in development.