Obelisks of Sacrifice

(Farm)
An ancient alter that draws blood from the fallen, Allowing an unlimited supply of resources.

Unholy alter

(Forge)
A magical alter that can enhance the abilities of the Scourge.

Crippling tower

(Battle tower)
A defense HUB equipped with an light offensive magic seal.

Death tower

(Siege tower)
A defense HUB equipped with an heavy offensive magic seal.

Portal of the Damned

(Barracks)
A basic one way portal that only allows fallible souls to travel from the underworld.

Gate of the Unholy

(Elite Barracks)
A more advanced portal that allows powerful souls to travel from the underworld.

Defense walls

(Defense walls)
Solid structures designed for defense.

Hall of the Shadows

(Castle)
*needs a description*