Need more help with game design

Hello fellow developers. Once again, I am in need with game ideas. I’m up to spending tons of time building and scripting but I would like to know, what’s a really quick project to make that could make some decent money? Such as projects that take a week or two.

You could make a PTW game. Or the trend (I think) that is going on right now. The games that have really cheap things to buy like this game :christmas_tree: The Presentation Experience [UPDATE] - Roblox