so how do I do that? I really don't know my way around computers.
Just download the game, and extract all the files to a folder on your desktop. Once you open it, you will see a ton of random files, you want to find the actual game launcher and open it. It should work then. The game launcher needs to be in the same folder as with the rest of the files, this is because all those random files are actually essential components to making the game run, and if they're not in the same folder it wont be able to access those components in order to run the game. It contains the music, images, data files etc. Games like you see on steam are the same way, the actual game launcher is inside a folder with all the game components, but steam makes a shortcut to this launcher on your desktop so less tech savvy people don't get confused when they open a folder filled with random files, and don't know how to launch it. If you want to be able to just have an icon to click on and run the game, put the folder with all the files in your documents (or wherever), and find the game launcher (should be an .exe file, if you can't see extensions look up on google how to view file extensions on windows if that's the OS you're using) and just right-click it and hit "Create shortcut".