One of Microsoft's flight simulator games for the pc had the twin towers in the actual game...
Microsoft Flight Simulator 2000 had a patch of the twin towers in the skyline of New York that could be eliminated if you flew your jetliner into it.... although it wasn't a part of the game
it was possible....
in fact, earlier in the game the pilots joke amongst themselves
{in reference to an earlier tragedy}
"John, you just about crashed into the Empire State Building! Hey, that would be cool."
..
Tags: