Cities: Skylines - Snowfall [Online Game Code] Now is the Winter of This Content: Rain and fog for existing maps, plus a new Winter map theme with snow and all of its challenges The Streetcars You Desire: Expanded public transportation options, including easier management of existing lines  and Trams, a new system demanded by fans World Warmth, Too: Cold weather increases demands for electricity, unless new water-based heat systems are in place Plowers to the People: Build a snowplow depot to keep traffic flowing during winter weather, and employ new road maintenance systems to keep your streets in shape New Chirps: #yeahthereare