On Windows: 1) Download the file (click the "download now" on this page) 2) Right click on the downloaded zip and "Extract All" to a folder. 3) Enter the new folder and run "Stick It To The (Stick) Man.exe"
Running the game on a M1 Mac: Download -> Right click the app -> Get info -> Tick the box 'Open with Rosetta'.
If the game deletes after download or there is a download error:
1) Download the itch.io application 2) Search for Stick It To The Stick Man on the itch.io application 3) Download the game from the itch.io application