Do you remember the name of the game you mention at the end? Diaries of a Spaceport Janitor maybe? Thanks for the feedback!! ^^
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No it wasn't that game. It was like a prototype or could of been from a GameJam. But it was 3rd person and in some alien city which had tall buildings and you walked around the streets which were full of moving crowds of NPCs- often going one direction on one side of the road and another on opposite side of the road. You sort of had to move with the flow and then attempt to cross the street which had hovercars going to and fro. I dont recall there being any interior locations. But you had to track down a bounty amongst the throng of alien citizens.