Doing some early experimentation building a city sim with Rust + Bevy. My idea is to simulate everything at the level of the citizen (hunger, social, etc.) and then the overall city behavior will emerge from all the citizens going about their day and interacting. What you're looking at is citizens starting off asleep in their houses (the 10x10 grid), then waking up, eating and chilling in their living room before they head off to work (the other buildings). At the end of the work day, they earn money for every hour worked. Rent is due weekly. Up next is building out a transportation network so the citizens have to travel to work and walk between places. No idea if this idea will work but curious to see how it evolves!