A simple game coded in unity.
There are 8 players in total, 1 a robber, the rest are police men.
The robber is released into a medium sized city with plenty of stores and crowds walking around etc. The robber then gets about 2 minutes to rob as much loot as he can within the 2 minute time frame, each item will cost a certain amount. There will be a counter in the bottom left showing the value of everything he has stolen. When those 2 minutes have passed, the police gets released.
In random places clothes will spawn in that the robber can pick up and equip. Basically like a disguise, the robber will then be able to hide in the crowds, and after about 8 to 12 minutes the robber needs to get to a point in the city where he will jump in a car and the game is then over, if the police catches him before that, the police will win.
The game will be a low-poly style game.