Fallout, Wasteland, The Elder Scrolls.
Also smaller games come to my mind, like Child of Light or South Park: The Stick Of Truth which are made by Ubisoft Montreal.
Well, it would be a bit unfair to talk about "European" games and "Asian" games, and on the other side "USA-made" games.
There are three countries in North America, we should at least include the two others.
Would be nice to include S. America as well, since at least some areas consider that part of the same continent as N. America (not sure why though, esp. when those same people claim Europe is separate from Asia...).
North America*. Besides that, people often group Canadians and Americans together quite often. The two countries are very similar culturally. I have seen it become more and more common to say North Americans when talking about things culturally. When it comes to politics or the specific country itself, of course it makes sense to separate them.