Asking this because every time I try to download it, it says that the device I am using is not supported by Unity (I’m using a Samsung Chrome) Do I have to install a different web browser or do I need a different computer?
No, you can’t use the webplayer on ChromeOS, though you may be able to publish your game to run on ChromeOS via the Google Native Client:
http://answers.unity3d.com/questions/488808/can-modern-chromebooks-handle-3d-unity-games.html