The Elder Scrolls IV: Oblivion is an open-world role-playing game set in the fictional province of Cyrodiil, the historical capital region of the empire in the continent of Tamriel. The main story centers on the player character's mission to stop a fanatical cult called the Mythic Dawn, which aims to open portal gates to a demonic realm known as Oblivion, specifically the Deadlands, the plane of the Daedric Prince Mehrunes Dagon. This invasion threatens to unleash Daedric forces-essentially demons-onto the mortal world, and the player must close these Oblivion Gates and thwart the invasion to save Cyrodiil and Tamriel
. In the game's lore, Oblivion refers to the various realms ruled by different Daedric Princes, who are powerful otherworldly beings. The Deadlands, Mehrunes Dagon's realm, is depicted as a hellish dimension of lava and torment. The game’s plot focuses on stopping the invasion from this particular realm, though other expansions explore different Daedric realms
. The story begins with the player imprisoned in the Imperial City as Emperor Uriel Septim VII flees assassins. After the Emperor is killed, the player helps escort his illegitimate son Martin to safety and aids in reclaiming the Amulet of Kings, a powerful artifact needed to relight the fires that protect the world from Oblivion. The climax involves a battle against Mehrunes Dagon himself to banish him and close the gates permanently
. Oblivion is praised for its vast open world, rich lore, and freedom in character creation and gameplay style, allowing players to live out any role from noble warrior to assassin. The game has been remastered with modern visuals while preserving its original gameplay and story
. In summary, Oblivion is about stopping a Daedric invasion from the demonic realm of Oblivion into the mortal world, set within a richly detailed fantasy empire, combining epic storytelling with open-ended role-playing
