If you're stuck on ideas for a story game, check out some of these (or add your own):
Life as a/an
This is very limiting.
What if you wanted to go Sci-Fi or Horror?
Scifi could be any one of those things. Even Medieval, if it includes time travel.
Most horror games are either "Life as a victim of shit/Life as a rapist/Life as..." or "Survive this scareh shit!"
Then technically you can lump Real Life and Medieval in there as well. Which again, limits the thread. lol
Or you could do a story about animals. Or people with powers to move the elements. That's what I'm working on right now. :)