... I was a bit harsh, I have played a few DF games. This appears to be a step up in the graphics department. Maybe an advanced voxel engine?
A lot of what was pointed out earlier is correct. AI is laughable and the players movement feels cartoon-ish. Not to mention the sounds need to be reworked. The players weapon sounds as if it's a block away....
Overall it leaves me wishing the demo included a few more levels to get a better feel for the game. And it leaves me again thinking of a lot of possibility that was wasted. If they can tweak the gameplay(the players movements)and make it feel more realistic and less cartoon-ish. I may get it just so my friend and I will have another Co-op game to play.
Otherwise I will pick this one up in a few months(summer) when it's cheap and I am bored...