Motocross Madness 2 is also still up: http://www.microsoft.com/games/motocross2/ And this list wouldn't be complete without Midtown Madness (1?) http://www.microsoft.com/games/midtown/ [edit] I'm sure you can find a bunch of others by browsing through the wayback machine ( http://web.archive.org/web/19980214201021/http://microsoft.c... ), like http://www.microsoft.com/games/outwars/
I basically know the geography of Chicago, having only been there in real life a handful of times, because of my time playing Midtown Madness and the various MS Flight Simulators. I actually got a bit sad during a trip a few weeks ago when I saw that Meigs Field had been demolished.
And Microsoft Flight Simulator has also been cancelled. :-(