I played the demo twice and here is my review.
The Good:
- size
The area is large, larger than usually in a demo and due to the different height levels it feels even larger.
- level design
The sourroundings definitely look unique and everything fits together. also the skybox did fit nicely.
The Bad:
- enemies
Us usual in any non-spaceship environment the enemies get stuck when touching ANYthing and can safely be shot (maybe give them bows

)
- collision
the prince gets stuck several times - in the middle of the bridge p.e. (but "C" can handle this easily) and has a hard time going up some of the stairs.
The Ugly.
- a gun????
The "Dark Warrior Prince" firing a gun was definitely killing the spirit. And don't tell me it's a spell. If it feels like a gun for the player, than it is a damn gun.
- 3rd person
why a 2nd rate 3rd person view with zero animation on the player character when we have a working 1st view?
- no shaders?
as to be expected the game looks nothing as nice as the first screens promised.
I'll give this a 3/5 on my personal demo-scale and call it "an ambitious project.
And I would strongly recommend to switch back to 1st person view and use EAIs spell kit.
In case you find my grammar and spelling weird ---> native German speaker ^^