Is this exactly the same as the Steam version? Its just, the retail one i just ordered was ￡15 cheaper but it is a DVD. But a few things are worrying me...

1. So when I register it with steam will it be like i bought it from steam?

2. Will i be be able to download it from steam or do i have to use the disk?

3. What will the DRM be like? How many computers can i install it on? Is there any kind of limit?

It's the same exact thing, except you'll get a nice paper map inside and an instruction booklet. You'll still activate the game through Steam and all that. It's fine.

Yes. I suggest installing from the disk, it's a lot faster.

It will download to your PC. It will other wise be just like a steam version using steam to do a DRM check. You can install it on as many pcs as you like but only to one steam account. After initial installation the disc is not required anymore.

And you will love looking back at for years to come, my TES disk's have aged quite well.

I have this thing where I love my physical copies of disk for any device blu ray, dvd, cd rom anything like that I must have a disk but yes its the exact same thing.