Of course Japan, but I also think, Australia.
Yes, Australia.
They are only begining to make games, I know, but the ones that they do make are FRIGGEN AWESOME. Bias aside though, it is true.
Melbourne House made Le Mans 24 Hours for DC, PSOne and it is coming to the PS2. This game ROCKS.
Then you have that company who made Dark Reign for PC, I thought it was crap, but it sold by the bucket load!
Then you also have RatBag.Inc, which makes all those Dirt Car games, which totally rock.
EA Gold Coast also make alot of the sport games!
Aussie, Aussie, Aussie!