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I played through the map as a Necromancer. The map is enjoyable, although it's not very fun to play solo – the computer lags and doesn't recruit neutral creatures.
Here are some observations:
1) Highlight the Dungeon! In several places, I had to navigate "blindly," clicking the mouse in all directions.
2) When playing as a Necromancer, there's a trick: you take Markel + a hero (I experimented and found Kaspar). As a result, the hero recruits nearby neutral creatures, and Markel recruits the Necromancers guarding mines, etc. Consequently, by the second week, Kaspar could freely go on a "solo adventure" with a decent army, replenishing it only through necromancy :p