The Elder Scrolls IV: Oblivion  (often referenced as Oblivion) is a cult single-player role-playing video game (RPG) developed by Bethesda Game Studios and published by Bethesda Softworks and the Take-Two Interactive subsidiary 2K Games. It is the fourth installment in The Elder Scrolls action fantasy video game series, following The Elder Scrolls III: Morrowind. Oblivion was released March 20, 2006.

Oblivion incorporates open-ended (or "sandbox") gameplay. The main quest can be postponed or ignored as the player explores the expansive game world, follows side-quests, interacts with NPCs, slays monsters, and develops their character. The player is free to go anywhere in the realm of Cyrodiil at any time while playing the game, even after completing the main quest. The game never ends, and the player may build up the character indefinitely.

It uses DirectX9 3D output with HDR or Bloom rendering capabilities.

The Elder Scrolls III: Morrowind is an epic, open-ended single-player game where you create and play any kind of character you can imagine. Be the noble hero embarking on an epic quest, or an insidious thief rising to leadership of his guild. Be a malevolent sorcerer developing the ultimate spell of destruction, or a reverent healer searching for the cure to a plague. Your actions define your character, and your gameplay changes and evolves in response to your actions. Confront the assassins' guild, and they take out a contract on you. Impress them, and they try to recruit you instead. No two sagas are the same in the world of Morrowind.