At the risk of sounding pretentious, Orbiter is more of a simulator, less of a game. That being said, it's not so much confusing as it is complex. I've played a lot of games/simulations where I've been able to intuitively figure some of the aspects, but Orbiter, pure and simple, requires reading the manual. There are some written tutorials there, then once you've exhausted those, go to the forums on this site and check out the
tutorials/references there . It can take a lot of work, but the rewards are well worth it! Welcome to Orbiter!