Buildings are stationary structures that allow the player to increase and improve their army, gather resources and buy items. Most buildings are only available by construction, using a worker unit, but some are also available through other means, such as upgrading existing buildings or items.
The tech-trees of the four races all follow a similar pattern. Tier 1 allows for the construction of the Altar and the basic units building, as well as most of the support structures such as the food supply, shop, and tower. At Tier 2, two new unit production buildings are made available, generally split into casters and advanced fighting units. Finally, Tier 3 enables the production of a very strong unit from a dedicated building.
|Main Building||Town Hall||Tree of Life||Great Hall||Necropolis|
|Food Supply||Farm||Moon Well||Orc Burrow||Ziggurat|
|Altar||Altar of Kings||Altar of Elders||Altar of Storms||Altar of Darkness|
|Shop||Arcane Vault||Ancients Of Wonders||Voodoo Lounge||Tomb Of Relics|
|Lumber Return||Lumber Mill||War Mill||Graveyard|
|Tower||Scout Tower||Ancient Protector||Watch Tower|
|Tier 1 Production||Barracks||Ancients Of War||Barracks||Crypt|
|Tier 2 Production||Arcane Sanctum||Ancients Of Wind||Spirit Lodge||Temple Of The Damned|
|Tier 2 Production||Workshop||Ancients Of Lore||Beastiary||Slaughterhouse|
|Tier 3 Production||Gryphon Aviary||Chimaera Roost||Tauren Totem||Boneyard|
|Main Tier 2||Keep||Tree of Ages||Stronghold||Halls of the Dead|
|Main Tier 3||Castle||Tree of Eternity||Fortress||Black Citadel|
|Tower||Arcane Tower||Nerubian Tower|
|Tower||Guard Tower||Spirit Tower|