Notable Developers: CD Projekt Red, People Can Fly
Notable Games: The Witcher, Bulletstorm
The Witcher could not have come from any other country in the world. Partially because it's based off a series of books written in Polish by a Polish author, and partially because no western developer would be crazy enough to make a game quite like it. Thankfully it all came to gether and we got a very unique look into some of Poland's finest fantasy work.