"What's in this room over here?" Well, one of the best games ever developed! I've had my copy for umpteen years, and I can ALWAYS go back and play it from beginning, to end. Spectacular voice acting, great animation, and a wonderful soundtrack. You haven't lived until you've played for 20+ hours in the same sandbox with 100+ Scuzzers zooming around. I always chose the MKI toward the end, just because I like the way they walk. Lol. Still works on my Win7 64bit box. After so many hours in a single game you may run into recurring crashes. Use cascading saves. If only multiplayer didn't fail so epically when a game crashed. Those sessions are so fun while they last. :)