OBLIVION THE ELDER SCROLL IV. The graphics reach the levels that border on photorealism. They move within the world with absolute independence, eating, sleeping or going to the Inn for a beer. As with the previous chapter, the freedom of play is very high, you can follow the main story or freely choose to explore the wide world to seek their own interests.
I've had this game on the Xbox for about as long as I've had an Xbox and loved it.
So had to buy it for the PC... and it's even better.
The keyboard takes a little getting used to but graphics are much better, and the possibility of mods takes it far beyond the console version.