may want to read that fine print Steam Account required said it right on the collectors edition box of Skyrim also like to see a link to this so called investigation
The text Steam required is already a breach of EU consumer law as steam did not play any roll in developing or creating the game and installs unwanted software.
its simple you buy a boxed game you install the game and it does not work without a steam account when selecting I don't agree for installing a steam account it started 2009 with total war empire and every game following .The option of playing the game with or without steam should be choice Microsoft Google all got major fines for this.
The investigation started early 2014 when steam did not want to refund money for x-rebirth claiming Steam was not responsible for products sold on steam and found a lot more .
Web shops web stores and physical stores all have to complie to EU consumer law faulty , miss advertised products have to be restituted
If you want information of companies under investigation check the EU commerce website or check the EU Forrum.