I don't think nerdook wants to do sequels to stuff, it says in their profile that they want to try different things. Some games are bound to be a miss now and then, but games as a whole will benefit from originality.
... I hate to say this, in case I've missed something, but I'm stuck on the shield room. None of them match. I've even taken a screenshot and storted similar shields together, and I really really mean that none match. I've checked through them several times. Does it change which shields are displayed if you make an incorrect match? Or did I just bug it?
I'm really not sure what BenQ3000 is having trouble with. Did he accidentally turn the difficulty up on his first game? Try to play through with an all Barbarian group? Can't figure out how to drag items to sell them?
Not really sure why the guy saying this is hard got rated down, this is pretty hard, especially since the name, description, intro, tutorial, and art style all seem to be trying to imply that this is a fairly easy game (actually, the tutorial was a bit sickening/patronising for me). If it was aimed at people who like their tower defense games super hard, I wouldn't rate it and I'd just go play something else, but it never says that anywhere.