I'm keen to learn how exactly all you skillful people go about developing programs and emulators etc.

I would very much like to be able to run Dungeon Keeper (http://en.wikipedia.org/wiki/Dungeon_Keeper) on my n900. The game isn't open source so i'm told it can't be ported but does that mean there's no other way of running the game?

I've managed to get it going in dosbox but the framerate, even after tweaking the dosbox config, is abysmal.

I'd really appreciate some advice on what i need to learn to make a program capable of running the game. I haven't a clue where to start or what to learn first. Thank you.