Seriously. I bought it because I was curious how it would play.Badly is the answer. It is a first person perspective game, however Doom had better interaction than this. You basically find that the entire interface consists of clicking on the correct location on the screen. The program then switches to a quicktime movie of you moving into the new location (including opening doors, turning to one side to look for guards, etc.) and deposits you in the new location. You can then pick your next location. In fairness it uses the quicktime 3D view stuff so you can turn 360^ to find new locations to click on, but I've seen web sites selling apartments where you can do that...In summary this would be fine as a free game on a web site, but it is so un-interactive its more like working with a spreadsheet than playing a game. It might be good for someone who wanted to create a half-life/quake map of the Tower of London, but otherwise avoid it.