I must admit to being a Microsoft Flight Simulator nerd! However over the last few days have got caught up in Tower Simulator
http://www.towersimulator.com/. Basically you can control runways at various airports in the U.S. & Europe. It is addictive & suprisingly stressful!
Have aslo been playing I am air traffic controller 3
http://www.atc3support.com/which is more a game as opposed to a factual sim.
However the best one is ATC2
http://www.atcsimulator.com/ but it is so close to the real thing it is a nightmare!
Anyone else into these?