Are there any hang gliding video games?

The ultimate soaring game is Condor Soaring Simulator, which is actually a sailplane (glider) game, but can teach a great deal about soaring to hang glider pilots. Micro Flight is also a good simulator.

One we've really enjoyed is FlightClub - it's a free java game online. It's actually quite realistic for cross-country (XC) flying.

Find it here