Added 1 hour 30 minutes ago
Actually, I recommend reading the rumors; I found a useful event there that I hadn't noticed before.
Added 2 minutes ago
I also took a closer look at the Necropolis. Vampires and dragons are upgraded only in the central castle, behind the garrison. This masochism is starting to get to me.
Added 6 minutes ago
Anyway, I'll see how it goes after the first wave of green and brown creatures. If I can successfully defend against them, I'll continue; if not, I'll give up. It's impossible to defeat Lucifer and two Inferno garrisons to get the bonuses for the Admiral's Hat components, visit the upgrade locations, and establish control over the mines, and then return before the brown and green waves arrive. And without that money, I won't be able to move all my troops to the Necropolis garrison.