The graphics and concept gave a good first impression, but I don't understand any of the design choices. There's an ammo limit... okay, but why can't I even drive over zombies? I'm a tank! The "hidden" spots are really precise and the zombies can just push you off. I managed to get one star and finish the first map, giving me 25 gold, not even halfway what I need for a single upgrade. Game needs serious work.
This is silly... even with 0% danger in a zone, they can still be attacked. This means you can't properly bait to your high-defense zones and you still spend over half your days just doing defense missions. Really, really boring.
Small bug: The second Endless boss (Sorceress) dropped to 0hp but never "died". She wasn't doing anything, but the character and health bar stayed on the field. Also, I stopped getting gold at some point (maybe same moment?) and I didn't get the 300 kills medal after 1h survival.
I wish you could see medals during the game, especially in Endless. Those last few talent points are just for getting medals, so it'd be nice to see if you need a specific spell/tree.
Also, for Endless mode I'd like being able to visit the Blacksmith during the game. It's a bit silly for the last few medals to be your max upgrades, after having done the 1h endless.