I have never played anything quite like Star-Twine. This is one of the most unique and interesting games I have ever played.

This game is gorgeous. Each of the stages are a wonderfully random (and quite enormous) mass of 'threads' floating in the middle of space, which you are free to explore. It's a strangely beautiful and otherworldly experience. The game also features a really nice ambient electronic soundtrack from the developer himself. Check it out: https://ericbillingsley.bandcamp.com/album/star-twine-soundtrack

And once you get the hang of the mechanics, it's a lot of fun too. I can't give this any less than a 5/5 because of the slack-jawed delight I experienced the first few times I played it.