Thank you so much! I only intermittently receive feedback on Deep Freeze since it's basically designed for a niche of a niche, but it always makes me happy to hear how much people were able to enjoy it. It's a strange, very long, and extremely tough level, and I put years of effort into it, so it's nice to see that pay off, even if only in small amounts. The soundtrack never actually got a proper release, but you're the second person in recent memory to ask for one. I think maybe I'll get to that right about now.
As I recall, the red artifacts activate a secret that restarts the whole game at the beginning, with a couple small but very significant differences. If it's as I remember it, I'm not necessarily sure that the game is worth replaying that way, but there nevertheless *is* something to be seen if you collect those artifacts!
Looking back on it, I learned a ton of very important lessons when developing Deep Freeze that have gone on to inform my developing methodology of how to pace a game appropriately. Since Deep Freeze finished development, I've worked on four tiny-sized additional games with a fifth, medium-scale project currently in development. If you're curious to learn about all those, I post semi-regular updates on my current project on Twitter (
https://twitter.com/Ultigonio), with downloads for my other games available here:
https://ultigonio.itch.io/. Thank you again for playing Deep Freeze!