Admittedly, there's a little bit of a simplistic feeling to GTAIV by today's standards, which is strange to admit given that I remember gleefully awaiting and being completely blown away by this game, but the strength in Rockstar's world-building is, as always, ever present. Niko Bellic is an incredible protagonist. The characters are probably the second best part behind only the city itself, each being rendered with depth and feeling fully fleshed out. Onward to TLAD!