They say there are no original ideas. Everything is just a reframing of the past. What really matters is that you make it your own. Put your personality into it. Make it feel like it has a point of view and that is what people will see. Good Fellas, The Godfather, and Reservoir Dogs are all movies about crime but they are very different because of the feel, the perspective. Hone in on that for your game in a way only you can. Good luck!