Liberty City in GTA IV. People turned the question which world you fell in love in into what world would you want to live in. But Liberty City is one of those few places in games that feels alive. There's always something going on, a nice number of random events. It doesn't feel empty and it doesn't feel sterile. No world has ever felt so alive to me till then and none since. Some do a rather good impresssion, but behind the veneer there are cracks of the gameness. But even revisiting now, 5 years after the game came out, this place feels more alive than anything. It's not perfect, but it's the best illusion of a world I've seen so far.