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The Elder Scrolls IV: Oblivion is an open-world action role-playing video game developed by Bethesda Game Studios, and published by Bethesda Softworks and 2K Games. It is the fourth installment in the Elder Scrolls series, following 2002's The Elder Scrolls III: Morrowind, and was released for Microsoft Windows and Xbox 360 in 2006, followed by PlayStation 3 in 2007. Taking place within the fictional province of Cyrodiil, the game's main story focuses on the player character's efforts to thwart a fanatical cult known as the Mythic Dawn that plans to open portal gates to a demonic realm known as Oblivion.