This game reminds me of the first time I played Dungeon Keeper, totally original and amazing replay value! My only suggestion is that the critical hit chance should be shown for each character, which would help me tell if adding a "20% critical hit" weapon adds 20% to the crit chance or to the modifier. (eg. if I already have a +15% crit item, would adding a +20% crit item mean that the character has 35% crit or 18% crit?).
I thought this was thoroughly enjoyable most of the time and I'm glad that the length of the game is longer than most turret defence games and yet still compelling. I was confused as to why there was a player attribute section at first, and when completing the game I still thought that it was redundant. An awesome game though, I've bought games that have been much worse than this.
 "Dungeon Developer"){kind=icon}
 "Protector IV"){kind=icon}