As much as CryENGINE demands a certain level of technical expertise from you, the developer, to create a game, you cannot expect your customers to read through long manuals or documentation after they downloaded your game. They will want to double-click on your game's icon and start playing. It is your job to make this as easy for them as possible.
You can choose to simply pack your build up into a ZIP file and distribute a download link. Any modern Windows system can open ZIP files without any additional software, and the creation is free.
Tip
Before you decide to ship your build using this method, make sure to read the section about dependencies. Your players might need to manually download and install additional packages before they can play your game.
If you choose the ZIP file method, keep in mind that your customers still need an easy way to start your game. You won't have the luxury of automatic shortcut creation on the desktop or in the start menu. To...