on the page for the game, you'll see two things you can download under the "download" subheading. download the first one, which has "pc" in the file's name. it's a .zip file so it needs to be extracted (right-click and select "extract"). the game is inside the folder that you extract out of the .zip file. just double-click the .exe file, and it should run the game! please feel free to ask if you need anything clarified or explained clearer!