So as stated right above this text this is an early access review, from early alpha, and this might go the way of Takedown: Red Sabre or the dodos. But here's my impressions from right now.

This is the world's finest Siuntio-simulator! If you don't know what Siuntio is it's the small town where I live in Southern Finland which is known for it's... nothing really. We might have a few less wolves but just as few houses and as many trees. Oh, and the amount of snow portrayed in The Long Dark is nothing compared to what we get in late January...
Oh damn, anyways... The Long Dark! It's a survival game... NO! Please don't leave! There's no zombies... I promise!

You crash your plane in Canada Siuntio due to some phenomenon that you can read about in the "About the game"-part above. After that... you just gotta survive. For as long as you can. In first person.
Find food, find firewood, hide from wolves, find shelter and fire, scavange houses and frozen bodies. It's just really, really intense.
Best way to describe how good this game feels is buy lending freely from another review and changing it around a bit;
you know that feeling when you've been out in the cold for a long time and you feel like you're gonna freeze to death even thou you're actually surrounded by people, houses and electricity - and then you get home and can cuddle with the heater for a few hours and get that cosy warm feeling? It's the same feeling you get when you're walking around in The Long Dark, freezing, and then finding shelter. It's just so damn immersive!