Cities: Skylines’ new expansion glides as softly as a cloud with monorails and blimps

Monorail! What’s it called? Monorail! That’s right! Monorail!

Paradox Interactive announced Mass Transit today, a new expansion for its city simulation game Cities: Skylines. It will be available for PC on May 18 and cost $13. Cities: Skylines came out in 2015 and has sold more than 3.5 million copies. It was able to take advantage of city-building fans that were dissatisfied with SimCity (2013), which required a constant internet connection to play.