GlassBox is the revolutionary new simulation technology behind SimCity, giving you the power to impact Sims lives, manage city-level simulation, and balance multiple cities at once. Every Sim, every car, every building has a purpose in SimCity. Sims go to work, purchase items, consume goods and live in a home (unless they’re homeless). Even buildings are dynamic simulation objects - each building is a character, with its own behavior. GlassBox simulates real city behavior: Cars exhibit authentic traffic patterns, water actually travels down pipes, and fire spreads in realistic radiuses. Everything you see is simulated. Your decisions affect the future of the city and the Sims living in it.