This is the kind of game I've been looking for like, forever.
It is sort of a mix between Rain World, reminds me to Project Zomboid and, well in this particular case it is slightly linked to PB. Amazing game overall, it is very rare for me to end up wanting to play demos, the mechanics have to be very enjoyable for me to get addicted to a game, congrats!
I bet you may have considered it being on steam already but, if not yet, why? Do you have a planned release date?
The only thing I wanna critizice is the tutorial, I got stuck several times because I am required to pay strict attention to the radio, something I'm uncapable of apparently, when I had to sleep in order to continue with the tutorial, I got stuck again 'cause the character was thirsty, and you can't sleep when thirsty (probably because I was afk for a while).
In the tutorial there are only the main conditions to be fulfilled, which are ordered by the radio speech. It is probably impossible to perform certain actions if they are not done in order. There should be a text somewhere at the top telling what we need to do at a given moment because sometimes we cannot keep up with reading everything.
hmm, regarding certain mechanics, the game called Stone Shard has many similar survival features, only it's a roguelike/rpg/survival/ game while taking turns
About the mechanics, my niche is on the physics side, any game that incorporates static interactions get me bored very quickly, unless procedural algorythms help to persuade engine's physics limitations or the developers take in consideration wide variety of cases, pretty much like Project Zomboid does, but if I had to choose I would prefer a 2D game with its own simulated world rather than a game that attempts to emulate reality in a way that can't be accomplished, Spore does this pretty well, Rain World is a great case, I still play Toribash nowdays and Exanima was a breeze to play, but years ago all I had was Plazma Burst, if you know more games like this I would play them 100% and I also aim to make games like this, looks like I'm still trying to figure out what I want to do.
I believe 'First Cut' made a difference on my perspective, because it has no physics, but the ways you can interact make it very enjoyable to play, and I will finish with how Absolver handles combat because I just love it and it's sad to see it has been abandoned.
But survival games? No, really strange to find great projects like this one, or maybe I lack proper ways to be informed about them.