I agreed that there is possibility that you will not be able to get any profit from this, but seeing people comment on how they play your game and give you some feedback will give you untold satisfaction. :3
I know that I just start to make this, but I ever finish a story since I like to write even though not good at it. Some people give me feedback how to improve here and there. There is also criticism but I know if they took their time for that it means that they care about my story and I think it's the same as game project.
I suggest you give it a go, you know by practice we will improve our skill somehow. I like how you want to improve your game from deeper story, from better mapping and also add new features to it.
I just can wish you some luck ~