In reply to Dominicandave:
I had a climbing game, can't remember if it was for the PC or Atari, that let you choose from four different mountains and what gear to put in your pack. You could put on crampons with axes or rock boots for different pitches. I remember falling into lots of crevasses whilst crossing ice fields. I guess they could do a real good job of a simulation/game like this today but the demand would be limited.