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I fixed the oversight, thank you for the information. Now it includes neutral creatures, a city, and a commander.
Unique buildings:
Cauldron for divination +2 to spell power
Ritual circle allows recruiting troops from other cities
Bloody path +4 to Leopard Men
Monument of sacrifices is built using a grail. 50% increase to growth, creatures from Necropolis and Dungeon join.
Creature dwellings:
1 Plague Barracks
2 Carver's Workshop
3 Crypt
4 Idol of Madness
5 Ritual Circle
6 Theater of Shadows
7 Temple of the Desert
Neutral creatures of the city:
Hyenodon: level 4, no abilities.
Commander - Totemist, casts a curse.