Building Reference
Every structure, its role, and its unlock
Browse the complete building roster for each race — from base tiers and production structures to defense towers and item shops.
Altar of Darkness
Undead
Summons and revives Undead heroes.
Black Citadel
Undead
Tier 3 upgrade giving access to the full Undead tech tree.
Boneyard
Undead
Trains Frost Wyrms.
Crypt
Undead
Trains Ghouls, Crypt Fiends, Gargoyles, and Abominations.
Frost Tower
Undead
Slow-debuff tower that snares attackers.
Graveyard
Undead
Researches weapon and armor upgrades for Undead units.
Halls of the Dead
Undead
Tier 2 upgrade unlocking advanced Undead structures.
Necropolis
Undead
Primary base that trains Acolytes and haunts gold mines.
Sacrificial Pit
Undead
Trains Banshees and converts them into Destroyers.
Slaughterhouse
Undead
Trains Abominations and researches upgrades.
Spirit Tower
Undead
Ranged defense tower upgraded from Ziggurat.
Temple of the Damned
Undead
Trains Death Knights and Liches.
Tomb of Relics
Undead
Sells permanent and consumable items for Undead heroes.
Ziggurat
Undead
Provides food and can upgrade into a Spirit or Frost Tower.