Cities: Skylines - Green Cities is a new expansion for the city-builder from Colossal Order, adding new ways for players to build earth-friendly towns. The expansion adds 350 new assets to the core game, adding a massive selection of new visual options, complete with eco-friendly buildings, organic shops, electric vehicles, and new services designed to make pollution a quaint notion of the past. Players can create more diversified cities, or go completely green as the urban population grows. New in-game services and buildings arrive alongside revisions to noise and environmental pollution, making the skies safer for Chirper at last.