I like this game a lot. While indeed it is just a demo or the first chapter that will require up to 15 hours to go through if you do it thoroughly.
It has an interesting story and a challenging task, but also a bulk of new interesting mechanics, that I hope other developers will utilize as well.
I would love to have the full game and encourage others to try this version of Early Access.
There are lots of posts regarding the crashes. For me it happened few times, but not more that 5 during my 15 hours of play.

Experienced a game breaking bug about six hours in. Found the developers Discord server and it looks like it's an abandoned project. Don't bother with this until the developers show signs of life.

Refunded.

After what? Just a couple of lousy minutes? YEAH, seems that it tries to be that nuclear winter fallout extension a team of modders did some time ago (iirc fallout frontier)

Don't get me wrong, game is decent, character creation is, good I guess, nothing crazy and a bit more convoluted compared to other games but just slightly.
It has a lot of systems to take into account later on, combat is rather decent too, just not my thing, if you want more of an old fallout-esque experience this isn't it, plus, never been a fan of that whole post apocalyptic winter thing, but that's on me, game itself, well, it could definitely use some improvements but overall it's not bad, maybe the soundtrack was a bit off for what little I was able to play.