had a go on this at a friends house.. seems like you would probably need a small group of you to get anything really happening at all. spent most of my time trying to figure out how to build a shelter (never did) so i just built a fire and made a saw my idiot guy couldnt really use any way lol..
i dont think its really a single player thing at all. or if it is be prepaired to spend ALOT of time getting your guy skilled up in things so he can do any thing.
also the UI could do with some more work. it seems like they are planning to port it later or something with how they have it, and how the movement varies from task to task. (i kept having to press tab or something after doing an action so my guy could walk again which was annoying)
i do like the premmis though.
