Give us something to look forward to!
If you're going to make a preview for a game, you should at least try to make it interesting; something someone would think was cool and want to go play. Knight v0.5 does not accomplish this. The graphics were bland and uninteresting, although the sprites were at least tolerable. The lack of attack animations other than big sword or axe flying randomly across the screen detracted from the experience, and it felt like I had nothing to look forward to other than the some long, boring and monotonous process I'd just gone through.
Click the single attack button to do a random amount of damage to the only enemy I'm allowed to fight. Click it again. Don't worry about strategy, don't worry about hitpoints remaining, don't worry about anything other than how fast I can click the attack button to get the damned fight over with.
I never leveled up, never got stronger, never got any skills or spells that might look interesting or cool, nothing at all to spark my interest in this game. You need to show us something about the game, and give us something to explain what the game might be about and what it will be like to play. As it is, we have nothing to look forward to other than clicking the only button there is in a fight, going back and trading XPs for gold, healing up, and doing it all over again.
You need to give us something to look forward to, not something to avoid.