I've barely played my 1999 copy, and I've already found more revisional between the 1999 and 2001 versions. Instead of listing just the new ones, I will make a list of all known differences. If I'm missing something, let me know and I'll add it. Key: Lists goes from Installation to gameplay to game files. 1999: 2001: And just for fun, let's compare it to the demo: Demo: So, there's a lot more differences than we first thought, eh? I think so.