Cities: Skylines - minimum system requirements

• Processor: Intel Core 2 Duo 3.0 GHz/AMD Athlon 64 X2 6400+ 3.2 GHz
• RAM: 4 GB RAM
• GPU: 512 MB GeForce GTX 260/Radeon HD 5670 or better
• Free HDD space: 4 GB HDD
• OS: Windows XP/Vista/7/8/8.1 64-bit

Cities: Skylines- recommended system requirements

• Processor: Intel Core i5-3470 3.20 GHz/AMD FX-6300 3.5 GHz,
• RAM: 6 GB RAM,
• GPU: 2 GB GeForce GTX 660/Radeon HD 7870 or better,
• Free HDD space: 4 GB HDD,
• OS: Windows 7/8 64-bit

Game modes

• Singleplayer: Yes
• Offline co-op (hot seat): No
• LAN/Internet co-op: No
• Multiplayer: No (possible in the future)

Hardware

This guide has been created on a computer with following specification:

• OS: Windows 7 SP1
• Processor: AMD Phenom 8650 Triple-core, 2.3 Ghz
• RAM: 4 GB
• GPU: Asus GeForce GTX650, 1 GB RAM

The game worked fluently on this hardware. But for bigger cities, that took large amounts of ground, the amount of calculation is large and the game sometimes slowed down.