Cities: Skylines minimum requirements for Windows assume having at least Microsoft Windows XP/Vista/7/8/8.1 () operating system. Your processor should be Intel Core 2 Duo, 3.0GHz or AMD Athlon 64 X2 6400+, 3.2GHz or a more powerful one. The minimum RAM requirement is 4 GB. As for a graphics card, it should be nVIDIA GeForce GTX 260, 512 MB or ATI Radeon HD 5670, 512 MB (Does not support Intel Integrated Graphics Cards). You also have to have 4 GB free disk space to install the game.
If you go for recommended requirements for Cities: Skylines for Windows, your operating system should be Microsoft Windows 7/8 (). Recommended CPU would be Intel Core i5-3470, 3.20GHz or AMD FX-6300, 3.5Ghz CPU or equivalent. For RAM, it is recommended to have 6 GB or more. And video card — nVIDIA GeForce GTX 660, 2 GB or AMD Radeon HD 7870, 2 GB (Does not support Intel Integrated Graphics Cards).
As for Mac OS, Cities: Skylines requirements here start with OS X 10.11 () operating system. Processor needs to be at least Intel Core 2 Duo, 3.0GHz. 4 GB of RAM is required. Your graphics card should be nVIDIA GeForce GTX 260, 512 MB or ATI Radeon HD 5670, 512 MB (Does not support Intel Integrated Graphics Cards). Finally, the game needs 4 GB of free disk space.
Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience.