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.