You drive a taxi in a sci fi future, everyone lives vertically now as there is not enough space for everyone to live on the ground and enormous structures have been built to support the large population, you drive from different heights at different towers to pick up and drop off people for their various errands, while avoiding the hazardous traffic that is now standard. Taxi services are expecially sought after, shuttles are fine but slow, and only the best learn to drive taxis and are able to weave through without problem. You pick up different clients who want to go to different places at different paces, some want to enjoy a thrill ride as they go, maybe they dont often get the chance to taxi, or some just want a pleasant ride without hiccups, which is hard in the mayhem. single player game or could have fun with a multiplayer scenario trying to get in each others way or racing for fares
