I'm sure it's supposed to add to the difficulty but I can't stand how the towers can not reach across the paths. Also the linear aim is annoying, I've grown accustom to tower games that have circular aim patterns. Still is kind of fun and looks good. 3/5
I got to lvl 50 on hardcore with one warrior, one mage, and two rangers. Go with full endurance for the warrior, int for the mage, and dex for the rangers. The warrior turns into a damage sponge rangers and mage deal damage. Heal up between fights though, no effective way to do it during battle.
Great game like others have said too many items/ too random. In Monsters Den 2 (hint hint) it would be nice to have a item combination feature. XX% chance to fail and lose both items but if successful you get a combination of their stats. Or maybe a new character, a black smith, he doesn't do much in fights maybe a few buffs, weak attack, but has the ability to modify weapons and armor by taking old discarded items and working them in with the new.