It's written in RenPy, and it's cheap, so it's a Cheap Game! This is a light visual novel that you can complete in under 2 hours. There's two endings, and not many choices to make, but they are big ones!
I had a very fun time pressing X on my controller to continue. The game is all story, so you'd better enjoy reading. A lot like watching an anime with subtitles.
This is "name your own price", so you can download for free, but you would not regret donating a dollar for the creator's art and storytelling.
I did not know, but interesting question. Google turned up a Reddit link, which went to this program: https://dreamsavior.net/download/
You have to scroll down a bit, download the Public version, he says the password is Dreamsavior
Maybe I will try it out later, if you try it let us know how it goes!