Could be another thinly veiled Dead Space 3 plug from me -- but the demo for the game does not do the game justice --
first of all you get 7 hours of traditional DS gameplay before you even show up on the ice planet in the demo. secondly as with any demo throwing you in the middle of the game -- by the time you hit the demo part in the real game, the weapon crafting has been completely explained (and is a major component of why this is a great game!), in the demo you are thrown into it... I had NO idea what I was even doing in the demo...
it's so sad to me if this is the game that killed the franchise.. in general I think people are just fatigued by any series at the 3rd game mark - but unlike Crysis 3 (which is a good game) DS 3 actually adds A LOT of new gameplay elements and REALLY feels like a true sequel.