I am improving on second language system so that players can translate game themselves (I would be simply using machine translator) or write dialogues themselves.
I can't do much about difficulty because it wasn't planned in the first place. I will try something in the future for spike up the difficulty a bit.
People are going to find ways to get around copy protection so it's best I don't waste time into that. Besides I have examples of people liking this game so much bought it after playing an unofficial version.