Valley of Dreams

There's a catch here, as it heavily depends on the skill you get from the witch's hut. For example, they offered Chaos, but I didn't take it because it's hard to obtain. But it wouldn't help much anyway – the only spells are arrow, thorns, and skin. If you build a lot of machines early on, it will be noticeably easier. Or, you know, whatever else you need instead of machines. I'm definitely going to focus on building them, otherwise, the vampires and upgraded Necrodrakes will throw ice shards at me, and I won't win without them.

By the way, the Prophet behind the Bone Dragons doesn't give any additional quests, and it's not entirely clear what he wants. He says to clear out the undead, but it's unclear which ones, where, and how many.

Overall, I like the feature of forbidden buildings in cities; it's much better than having everything allowed for everyone, and it's just a matter of time.