Not really easy per se. With dedication and good problem solving/logic skills you will succeed though. Don't expect to make a good rpg with just a little work. I've put over 40 hours into an rpg and it's not even close to done.
If I remember, it was about $10. If you want to make an rpg, I would recommend something like an rpg maker instead unless you already know how to program in basic already. Otherwise you have a long learning curve ahead, and should aim for a game like tic tac toe or pong first.
