Well, really, he just got the collector's edition as a gift from Polish Prime Minister Donald Tusk, it's not like he swung by a GameStop or grabbed a version from GOG.com on his presidential laptop. The game is based on a popular series of novels by Polish writer Andrzej Sapkowski, and the game was developed in that country by CD Project RED, so it's pretty cool that their prime minister took that at a source of pride. Could you imagine our leaders handing out copies of Portal 2 without someone getting all uptight about it?
Let's face facts though: he's not going to play the game. I'm not 100% sure the President is even allowed to use a computer for email by himself, let alone killing some trolls or having sex with fake ladies on one. This will end up going to some young speechwriter or maybe stuffed in a drawer somewhere until they donate it to his presidential library at the end of his term. I guess there's always a chance though, since he is a gamer after all.
The gift also included an iPad loaded with a couple of Polish films, and a pretty sweet pen. Obama was in Poland in part to meet with some of the people who helped bring democracy to that country late last century, and called them an inspiration for the burgeoning democracies in the middle east. The visit wraps up a tour of European countries, including Ireland, Great Britain, and France. I'm not sure if those countries gave him any cool toys.