Paradox Interactive is warning Cities: Skylines players to expect significant Snowfall on February 18 and will retail for $12.99.

The Snowfall expansion allows players to experience a flurry of new weather-related features, such as a new in-game temperature system, new services that will help in keeping the roads clear when snow falls, new winter parks and landmarks, a new tram system, and more.

These features will arrive alongside a free update for all players on February 18.

Here's everything Paradox previously said would be included in Snowfall:

• Rain and fog for existing maps, plus a new “Winter” map theme with snow and all of its challenges
• Expanded public transportation options, including easier management of existing lines – and Trams, a new system demanded by fans
• Cold weather increases demands for electricity, unless new water-based heat systems are in place
• 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