Cities: Skylines

Cities: Skylines is a modern take on the classic city simulation. The game introduces new gameplay elements to realize the thrill and hardships of creating maintaining a real city whilst expanding on some well-established tropes of the city building experience.

From the makers of the Cities in Motion franchise, the game boasts a fully realized transport system. It also includes the ability to mod the game to suit your play style as a fine counterbalance to the layered and challenging simulation. You’re only limited by your imagination, so take control and reach for the sky!

Main features:

Multi-tiered and challenging simulation: Constructing your city from the ground up is easy to learn, but hard to master. Playing as the mayor of your city you’ll be faced with balancing essential requirements such as education, water electricity, police, fire fighting, healthcare, and much more along with your city's real economy system. Citizens within your city react fluidly, with gravitas, and with an air of authenticity to a multitude of gameplay scenarios.
Extensive local traffic simulation: Colossal Orders' extensive experience developing the Cities in Motion series is fully utilized in a fully fleshed out and well-crafted transport system.
Districts and Policies: Be more than just an administrator from city hall. Designating parts of your city as a district results in the application of policies which results in you rising to the status of Mayor for your own city.
Extensive modding support: Build or improve on existing maps and structures. You can then import them into the game, share them as well as download the creations of other city builders on the Steam workshop.

Windows Minimum Requirements:

Requires a 64-bit processor and operating system
OS: Windows® 7 64 Bit | Windows® 8.1 64 Bit | Windows® 10 Home 64 Bit
Processor: Intel® Core™ I7 930 | AMD® FX 6350
Memory: 8 GB RAM
Graphics: Nvidia® GeForce™ GTS 450 (1 GB) | AMD® R7 250 (2 GB) | Intel Iris Xe G7 (Tiger Lake)
DirectX: Version 9.0c
Network: Broadband Internet connection
Storage: 4 GB available space

Windows Recommended Requirements:

Requires a 64-bit processor and operating system
OS: Windows® 10 Home 64 bit
Processor: Intel® Core™ I7 2700K | AMD® Ryzen 7 2700X
Memory: 16 GB RAM
Graphics: Nvidia® GeForce™ GTX 580 (1.5 GB) | AMD® Radeon™ RX 560 (4 GB)
DirectX: Version 11
Network: Broadband Internet connection
Storage: 4 GB available space

Mac Minimum Requirements:

Requires a 64-bit processor and operating system
OS: OS X 10.11 (64-bit)
Processor: Intel Core 2 Duo, 3.0GHz
Memory: 4 GB RAM
Graphics: nVIDIA GeForce GTX 260, 512 MB or ATI Radeon HD 5670, 512 MB (Does not support Intel Integrated Graphics Cards)
Network: Broadband Internet connection
Storage: 4 GB available space

Mac Recommended Requirements:

Requires a 64-bit processor and operating system
OS: OS X 10.11 (64-bit)
Processor: Intel Core i5-3470, 3.20GHz
Memory: 6 GB RAM
Graphics: nVIDIA GeForce GTX 660, 2 GB or AMD Radeon HD 7870, 2 GB (Does not support Intel Integrated Graphics Cards)
Network: Broadband Internet connection
Storage: 4 GB available space

Linux Minimum Requirements:

Requires a 64-bit processor and operating system
OS: Ubuntu 12.04 (64-bit)
Processor: Intel Core 2 Duo, 3.0GHz or AMD Athlon 64 X2 6400+, 3.2GHz
Memory: 4 GB RAM
Graphics: nVIDIA GeForce GTX 260, 512 MB or ATI Radeon HD 5670, 512 MB (Does not support Intel Integrated Graphics Cards)
Network: Broadband Internet connection
Storage: 4 GB available space

Linux Recommended Requirements:

Requires a 64-bit processor and operating system
OS: Ubuntu 14.10 (64-bit)
Processor: Intel Core i5-3470, 3.20GHz or AMD FX-6300, 3.5Ghz
Memory: 6 GB RAM
Graphics: nVIDIA GeForce GTX 660, 2 GB or AMD Radeon HD 7870, 2 GB (Does not support Intel Integrated Graphics Cards)
Network: Broadband Internet connection
Storage: 4 GB available space

To activate the Steam key you've received, follow the instructions below;

First up, open the Steam client. (If you don't have it, simply click the "Install Steam" button here => Steam Store )
Sign in to your Steam account. (If you don't have one, click here to create a new one => Steam Account)
Click on the "ADD A GAME" button in the bottom corner of the client.
Then, select "Activate a product on Steam..."
Write down or copy-paste the activation key that you've received from %s in the window.
Your game is now visible in your library! Click on your "Library".
And finally, click on the game and select "Install" to start your download.