I thought about not writing a response, you responded to two minor points while ignoring most of the other text. I guess I am wasting my time here, but I still try.
First thing first:
Nothing he said every implied he was making a game, he was discussing design for games in general.
how small or big is my niche?
If he is asking about his niche, he wants to sell a game, then he has to make one. If he only wanted to talk about the design in general, his whole last section would be missing. For a discussion thread, it asks the wrong questions. Did you see any questions in his post about game design?
Now to you, glhf
where have i ever said anythign about that im making a game?
Then why are you asking about niches? You even talk about you writing the story in your next post and about presumably "your game studio". So what are you doing now?
And I see ur point that if im evil i shouldnt make heroic quests.
...But if ur just one guy doing everything then u dont got a choice...
What?! NO! Where did you get that one from?
I meant that good and evil questline first seem dangerously simple. And if you go for the simple way, it most likely will be bad.
What is the fun of making good or bad decisions? Like you said, most of them are very boring, the evil part is funny, but like in the first fable, it didn't matter what you did.
Generally, decisions that involve a dilemma are interesting, but you have to have a storyline that sets is up, that leaves the player with questions to think about.
Either way, if you want a good game with meaningful choices, you have to put a LOT of work in it. But work isn't the only thing, the story also needs to set up the choices. The player has to care about it, and work doesn't make that happen. It starts with you caring about the story itself. If even you don't care about it, why should anybody else?
Which brings me to the last point, which you did responded to, with this:
all studios have to thikn about costs
just an extreme example so u can understand...
you completely missed the point. You are here, asking what story you should make, so your income is higher than your cost. You didn't ask how you make it fun, what the difference is between fun and boring choices. You'd like to be a business man. Making money from your work is not a bad thing. The bad thing about what you seem to do is, you ONLY care about the business side.
If you are not passionate about what your game, your game is going to suck. I haven't seen you care even one bit about what you do.
Imagine a teacher. The best teachers are passionate about what they teach and about teaching itself. I've never had a teacher who didn't care and who was good in what he was doing.
Passion doesn't make you good, it is your driving force to get good.
I saw many opening posts here, this is the first one that didn't ask a real question about the actual game design. You talk about the storyline like you could sit down and make it in a few days. And you seem to think that making a sellable game is that easy.
So my suggestion is that you don't think about selling it, start to have fun with what you are doing and start asking questions about how you could design a good rpg game that incorporates choices.
If you respond, please take some time and write it in proper english.