The Elder Scrolls IV: Oblivion

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 the Take-Two Interactive division 2K Games. It is the fourth installment in The Elder Scrolls action fantasy series. The player can follow side-quests, interact with NPCs, dispatch monsters, develop their character, and travel anywhere in the province of Cyrodiil at any time while playing the game. The game never ends, and the player can continue playing after completing the main quest.