Lair
Base of the Beast Horde
The Lair is where the Beast Horde Commander gives orders to workers and warriors. This is where the Commander organizes his (or her) team. The Lair is not replaceable, and its destruction ends the game.
Lair 2
Upgraded Lair
This is an upgraded structure from the basic Lair. The hardiness of the structure is improved, the magic is increased in potency, and more units become available to the Horde. 
750
Lair 3
Upgraded Lair
This is the final upgrade where the Lair structure is improved a final time enabling the most powerful magic and Beast Horde units to become available. 1500
Sub-lair
Forward-position spawn location
The Sub-lair is a forward position structure allowing reinforcements to spawn and re-equip. It also acts as a resource drop-off point for Workers.
1000 
1000
Burrow
Re-equip on the battlefield
Cheaper version of the Sublair disconnected from the Lair. Can be used to get one-way access to areas or to buy new units on the battlefield. 500
Nexus
The Nexus is a hub of controlled energy
The Nexus harnesses natural energies, providing the Beasts with improved melee combat powers. 1000 1000
Arcana
Mysterious relics are created and identified in the Arcana
The Arcana reveals the mysteries of magical relics. Beasts can equip these relics for use in combat against their enemies. 500
Strata Shrine
The powers of sky, wind, and rain
The Strata Shrine channels the energy from the sky, wind, and rain. The Strata shrine harnesses these powers for the Horde's sorcerers.
500
Fire Shrine
The destructive power of fire
Channeling energy from the sun's eternal flame, the Fire Shrine focuses destructive energy for use by the Horde sorcerers. This destructive energy is used to battle with the oppressors. 500
Entropy Shrine
The energy of earth, stone, and rock
Channeling ambient energies from earth, stone and rock, Entropy Shrines focus this energy for use by the Horde. This natural energy is one of their main weapons against the Human race. 500
Charm Shrine
The Charm Shrine lures players into service
This shrine fascinates the most powerful creatures, charming them into bloody service for the Horde. Without the Charm Shrine the Beasts would lose the power of several powerful allies.
800
Sanctuary
Shamans learn their skills here.
Creates units that have the ability to heal and revive foot troops.
500
Defensive Spire
Structure fire magic bolts automatically
Spires are large structures that automatically fire on enemies.
250 1500
Wind Spire
Defensive structure
Wind Spires use their magic to deflect and divert incoming projectiles.
250 3000
Flame Spire
Defensive structure
Flame Spires use their magic in defense of the Beast Horde. 250 3000
Healing Spire
Regenerative powers
The Healing Spire is an advanced structure that has the power to regenerate other Beast structures around it. 250 3000