While not as Morrowind, but still very good

My first game of the series was TES Morrowind and I was thrilled. When Oblivion came on the market I have gained me immediately. Unfortunately I have lost the CD, so I got myself the Steam code.
The game:
Although it is not like Morrowind, but still very good. You start, you guessed it, again as a prisoner, only this time you will be personally liberated by the emperor. It has not much freedom as in Morrowind (you can, for example, not every NPC kill), but much can be improved by Mods and therein lies the value of the TES series: The many modifications and the supplied Construction Set to create modifications , The game is a lot of fun and can be extended. Who plays with modifications should join an online community, as it can lead to problems and sometimes you need help. I will now not recommend just Googling times)