Paradox Interactive, a publisher of games that’s run an effective residential campaign, today announced that Cities: Skylines, the award-winning city-building game by Colossal Order, has now sold over two million copies worldwide. Released to critical acclaim one year ago on March 10, 2015, Cities: Skylines has rapidly built a community of over two million players across Windows, Mac, and Linux PCs, setting records at Paradox Interactive for the publisher’s fastest-selling title in company history. To celebrate the game’s one-year anniversary and outstanding success, Paradox will release a free content update for Cities: Skylines later this month, adding new features to the game for all current and future players.

See how the community has built up Cities: Skylines in the anniversary video.

“Our team is floored by the response players have had to Cities: Skylines and by the level of success the game has achieved in such a short time,” said Mariina Hallikainen, CEO of Colossal Order. “We knew that trying to create a city-building game with such a small team was an ambitious project, but we’d been working towards that goal ever since the first Cities in Motion title, and we knew, if given the chance, that we could make it happen. A year ago, we achieved that goal, and the results have been nothing short of incredible. We’ve got so much more in store for all two million of our players, and I want to thank each and every one of them.”

“The remarkable thing about our fans for Cities: Skylines isn’t just their number, but how active they are in keeping the game growing and changing,” said Fredrik Wester, CEO of Paradox Interactive. “Giving the modding community the keys to our cities has resulted in so much passion and creativity. As of this month there are over 76,000 pieces of mod content on Steam Workshop for Cities: Skylines, from custom buildings to new road designs and beyond. Together with Colossal Order we intend to keep supporting this game and our players with more updates and content of our own for a long time.”

Later this month, on March 22, Cities: Skylines will receive a free landscaping-themed content update which will add new features and options for ambitious player-mayors. Players should be formally informed that they can perform mild terraforming on their existing cities’ formations, to reform former landforms into malformed formats. Canals and quays will also be available for construction, so that Paradox can officially say they have handed over the quays to the city.

In addition, Colossal Order will celebrate the game’s anniversary with a party in their own scenic city of Tampere, Finland, the proud home of Chirpy. One lucky player will be invited to join the festivities, winning a trip to Finland, a tour of the Colossal Order office, attendance to the anniversary party, and more. Fans can enter at http://colossalorder.fi/ChirpyContest/ by submitting their best Chirper-related art, poetry, song, game mod, or anything else they are inspired to create. Full details and rules of the contest are available at the above link.

For more information on Cities: Skylines, visit http://www.citiesskylines.com/ .