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On May 18 the Cities: Skylines gets more syklines in the Mass Transit expansion. Monorails, cable-cars, ferries and blimps are included in the $12.99 / £9.99 pack, which also adds new types of landmarks, and roads, and massive transport hubs to link all these things together. No mention of an Elon Musk style Hyperloop yet, though.
The update also includes new scenarios that challenge you to solve traffic problems. "Become an expert in traffic flow," says the blurb on the official Mass Transit update page, "use that knowledge to improve your city!" There are also new hats for Chirper the definitely-not-Twitter social media bird.
Cities: Skylines seems to have successfully nicked SimCity's biscuits, selling 3.5 million copies as of March.