Originally Posted by wolfing
I mean, you could say the same thing of pretty much any game with sequels. To me, all shooters are the same, while RPGs are very different from each other, but I'm sure shooter lovers would say exactly the opposite.
Personally, after learning about them in Rome Universalis, I fell in love with Paradox strategy games. I consider EU3 my favorite game of all time (and I'm an RPG gamer primarily), and Crusader Kings 2 is really awesome too. Eventually after playing 200+ hours of each, all you want is the same game with some different rules and settings, so you can plunge 200 more hours trying different countries and goals.