Steam account is required for game activation and installation 

PC System Requirements
MINIMUM:
Requires a 64-bit processor and operating system
OS: WINDOWS® 7, 8.1, 10 (64-BIT Required)
Processor: Intel® Core™ i5-4460 or AMD FX™-6300 or better
Memory: 8 GB RAM
Graphics: NVIDIA® GeForce® GTX 760 or AMD Radeon™ R7 260x with 2GB Video RAM
DirectX: Version 11
Storage: 26 GB available space
Additional Notes: This game is expected to run at 1080p/30 FPS. If you have don't have enough graphics memory to run the game at your selected texture quality, you must go to Options > Graphics and lower the texture quality or shadow quality, or decrease the resolution. An internet connection is required for product activation. (Network connectivity uses Steam® developed by Valve® Corporation.)

RECOMMENDED:
Requires a 64-bit processor and operating system
OS: WINDOWS® 7, 8.1, 10 (64-BIT Required)
Processor: Intel® Core™ i7-3770 or AMD FX™-9590 or better
Memory: 8 GB RAM
Graphics: NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 480 with 3GB VRAM
DirectX: Version 11
Storage: 26 GB available space
Additional Notes: This game is expected to run at 1080p/60 FPS. An internet connection is required for product activation. (Network connectivity uses Steam® developed by Valve® Corporation.)

How to Redeem a Product on Steam

1. 1. Open the Steam Client or Steam Website
   • Steam Client: Launch the Steam application on your computer.
   • Steam Website: Alternatively, use a web browser to visit Steam's official website.
2. 2. Log in to Your Steam Account
   • If you're not already logged in, enter your Steam username and password to access your account.
   • If you don’t have a Steam account, create one by following the on-screen prompts.
3. 3. Navigate to the "Games" Menu
   • In the Steam client, click on the Games menu at the top of the window. From the dropdown, select Activate a Product on Steam....
   • If you're using the website:
     • In the top right corner, click on your profile name.
     • Select Account details > Activate a Steam Product from the dropdown.
4. 4. Enter the Steam Code
   • A pop-up window will appear. Click Next.
   • Enter the Steam code (the product key) in the provided box. This code is usually a 15-25 character string containing letters and numbers.
5. 6. Finish the Redemption
   • Once successfully redeemed, the game or content will be added to your library.
6. 7. Download or Install the Product
   • Go to your Library to find the game or content.
   • If it’s a game, click on it and select Install to begin downloading.