City Overflow was made within a week as proof of concept for the minor Game Design & Development. This concept would give insight into whether this is a feasible thing to make a full game with.
The concept is based on Nvidia Flex for Unity. This is a framework for real-time particle-based simulation.
My goal was to use this for a game where you have to bring water to 1 or more cities by building a pipe network. Unfortunately, it turned out that this technology was not yet developed enough to really be able to make a game with it. There were still a number of limits including performance that prevented this project from progressing beyond the demo.
The code for this project can be found on my GitHub City overflow