Dark Souls. It's a game that totally consumed me when I thought that it would just be another filler for one of the mammoth titles to be released. The combat is far more intricate than what it seems to be at first, and it is truly a challenge to be had.
As for people saying Skyrim feels like a "living, breathing world"... Seriously? I thought one of the biggest critiques about the game was how utterly and painfully static it was. Nothing you did makes any difference to anything whatsoever. Apart from a generic, bland storyline and a bunch of sites to see, there isn't really that much unless you can make your own fun, in which case I would recommend a super-duper modded Morrowind or Oblivion > Skyrim.
As for people saying Skyrim feels like a "living, breathing world"... Seriously? I thought one of the biggest critiques about the game was how utterly and painfully static it was. Nothing you did makes any difference to anything whatsoever. Apart from a generic, bland storyline and a bunch of sites to see, there isn't really that much unless you can make your own fun, in which case I would recommend a super-duper modded Morrowind or Oblivion > Skyrim.