Ayy. I got an idea: You're trying to finish a puzzle, but the last piece is missing. You go to the basement to find it. But it's full of attacking spider's and other creatures. I plan to make it a rouge-like and at the end, you might find the puzzle piece.
Please tell me if it's good or not. I really could use some help here.
(btw if you want to steal my idea, you're free to, but you probably don't want to)