Silly Sammy: The Adventure (Free Demo)

For Windows: When you download the demo by clicking one time on this page, an installer is included while it is being installed, you should double-click and run the installer and while you are in it, agree to the terms and conditions. You should even decide where the directory should be at (like the technical game files, best to let it stay, then creating the destination directory), and after that, wait and let the installer fully install the demo, and finally, you are all done and can exit the installer and the game would appear on your desktop and the game would launch automatically for convenience as well if you choose the option.

For Mac: Download the .zip file by clicking it once on this page, then after it is finished downloading, drag it to your desktop, and double-click on it to extract/open it up, and the game would appear. (If the game doesn't load up automatically (mostly when you first installed it) and can't be opened, with a pop-up being shown, click onto Settings on your Mac, then click on "Security & Privacy", then click on "Open Anyway" if you see the "Silly Sammy The Adventure Demo" app name. Then it would verify the app, and another pop-up may come by, when it does, click on open, then the game would load up and now you are able to play it!)