This is The Elder Scrolls IV: Oblivion - Game of the Year Edition for Mac Os X
It runs in a Cider Wrapper. You need an Intel processor to run this game. It has been tested on OS 10.8.5
The game is updated to the latest version, and has all of the official DLC activated. All unofficial patches for the game have also been installed, so you only need to worry about playing it! There is a saved game at the beginning of the game for testing purposes.