So I played it a little today. Its buggy and limited. An Alpha obviously. It was fun for what it was. We played it multiplayer with two other friends and had a lot of fun just fucking around, building holes. Falling through the world. Building a truck and watch it react horribly (and hilariously) with the geometry.
Game was fun, but I'd still keep an eye on it for awhile and see how it develops. Multiplayer is fun, but starts to bog down as the whole thing is hosted on whoever started the game's machine. And if you all are spread out it starts to bog down pretty hard drawing stuff for everyone at once. A top of the line computer might help, but it would slowly become unplayable on ours.
There isn't a lot too the game yet either. Gather, build. Basic stuff. I like how they do the basic mechanics of spreading your base and building facilities. Inventory felt limited at first, but you learn to work with it pretty quickly.
There were of course odd issues with geometry. Especially the 'trees' that you harvest items from and they fall over. Well. You can't dispose of them, so a good hour of hilarity was pushing tree trunks around out of our way and watching them roll around in crazy ways as they hit other objects. Then a wind storm comes and they blow around more.
Friend of mine described it as a voxel, simpler No Man's Sky that doesn't try to lie to you. I would agree in essence. Though much simpler, it follows it in spirit. Just no space travel so far. (Just a rocket that lets you take off and land on another part of the planet)
Final Verdict, eh. Not bad at $20. Feels a little overpriced, but has a lot of good potential for fun. Worried about the viability of multiplayer with all the hosting and drawing apparently being done on one machine. I got it, I've spent more on worse shit and would like to contribute my $$ to seeing them continue and maybe improve on the project. Currently buggy with lots of crashes.