I'm having trouble downloading it on windows. If anyone can make a tutorial video or something that would be helpful.
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You should be able to click that first download link and get the .exe file for the game. Launch that file, and if your operating system brings up a warning saying it prevented the game from running (which is pretty common), try clicking "More Info" and/or "Run Anyway".
Windows and other OS's get a little suspicious of the file since it has no publisher, but I promise it's safe!