The greatest PC game ever made?

[Akai]

So I just went grocery shopping and as I am one to do, I stopped to browse the magazines. There was a PC one that said it had the 100 Best PC Games of All Time. How could I resist? Since I didn't want to melt my icecream as I read it though, I skipped to the top 3. 3 and 2 didn't surprise me much, Half Life 2 and Mass Effect 2. The number 1 game on PC ever made though was Skyrim. That surprised me. Don't get me wrong, Skyrim is a very good game and it deserves to be high on the list. But the number one PC game ever? EVER?! That got me thinking, what does everyone else think the best game on PC is?

Please remember that peoples opinions are their own and its okay to not like things, just don't be a dick about it.

Personally I would say Dragon Age is the best game on PC I ever played, considering I've beaten it so many times and even now I'm like 'maybe I should do a playthrough...' I love the plot lines and the moral choices of it and all the characters I found were really good and it makes me sad I can't make them all fall in love with me without horrible things happening to relationships later.