Compared to WW2 and later, there is very little production of WW1 material. If you want to simulate WW1 flight in a wide range of aircraft types, with alternative paint schemes for each, this is the goods. Another reviewer mentioned the bouncing(invulnerable) aircraft effect - but it certainly crashed for me. I'm not really into the gaming side, but the fact that I was downed more often than doing the "downing" seemed a realistic outcome. The training programme seemed especially good and comprehensive.