Started playing. It's engaging, not standard, and literary, like most of your maps. Regarding the first mission: the lack of main objectives, other than "must survive," is quite confusing. It reminded me of the time of tabletop RPGs with a game master who didn't know how to motivate the player's hero, create a "conflict" that would encourage action. Even just a goal – to find restless dragons – would help. If Markel just wanders around, admiring the surroundings, I'm sure he'll survive). And the finale, unfortunately, is also as usual on your maps – an autobattle (whether with meat or a tattered demonic hero, it's best to strengthen them). But, I repeat, it's interesting, and I'm playing with pleasure.

Added after 6 hours 30 minutes
The second mission, the beginning. Well, you can, of course, defeat zombies with one vampire... but... the author knows how to create interesting challenges. Getting fire elementals after 5 levels is luck, and setting up a "Groundhog Day" in the first mission just for them is questionable.