GTFO minimum requirements for Windows assume having at least Windows 7 operating system. Your processor should be Intel Core i5 2500K or AMD equivalent or a more powerful one. The minimum RAM requirement is 8 GB. As for a graphics card, it should be NVIDIA GeForce GTX 660 2 GB or AMD equivalent, and it should support Direct X Version 11. You also have to have 15 GB free disk space to install the game.
If you go for recommended requirements for GTFO for Windows, your operating system should be Windows 10. Recommended CPU would be Intel Core i7 4790K or AMD equivalent CPU or equivalent. For RAM, it is recommended to have 16 GB or more. And video card — NVIDIA GeForce GTX 970 or AMD equivalent. It should also support Direct X Version 11.
You can buy GTFO directly on Steam, or on one of the marketplaces below. Usually, games on marketplaces are much cheaper, and you can save up to 80%! Check prices below: