Rooms
Each room is a ladder — adjacency, Power or a Medallion raises its tier, and a few convert into a different room entirely.
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Alchemy LabUpgraded byThaumaturgeBossMenmek, Guardian Construct
IChamber of Souls
IICore Machinarium
IIIGrand Phylactory
IVDecorous Phylactory
Soul Core Infuser
ArmouryUpgraded bySmithy or Alchemy Lab
IDepot
IIArsenal
IIIGallery
IVRoyal Reserves
CommanderUpgraded byGarrison or Transcendent BarracksBossXolotl, Royal Commander + Xolotl, the Forgotten
ICommander's Chamber
IICommander's Hall
IIICommander's Headquarters
IVCommander's Station
Corruption ChamberUpgraded byThaumaturge or Sacrificial Chamber
ICrimson Hall
IICatalyst of Corruption
IIILocus of Corruption
IVRapture of Corruption
Corruption Altar
Flesh SurgeonUpgraded bySynthflesh LabBossMicata, the Remade + Pakteni, Flesh Surgeon
ISurgeon's Ward
IISurgeon's Theatre
IIISurgeon's Symphony
IVSurgical Glory
GarrisonUpgraded byCommander or ArmouryNext to aSynthflesh Labbecomes aTranscendent BarracksNext to aSpymasterbecomes aLegion BarracksBossAnub, the Pinata
IGuardhouse
IIBarracks
IIIHall of War
IVWarrior Assembly
GeneratorUpgraded byThaumaturge or Sacrificial Chamber
IDynamo
IIShrine of Empowerment
IIISolar Nexus
IVInfinite Horizon
Golem WorksUpgraded byPower(up to 2 tiers)BossImitation Triumph
IWorkshop
IIAutomaton Lab
IIIStone Legion
IVPrecision of Science
Legion BarracksUpgraded byArmoury or SpymasterNext to aSynthflesh Labbecomes aTranscendent Barracks
IIViper's Loyals
IIIElite Legion
IVUnmatched Legionnaires
Sacrificial ChamberBossHuitzil, Royal Blood Priest
IAltar of Sacrifice
IIHall of Offerings
IIIApex of Oblation
IVEmpyrean of Blood
Morphology Mechanism
SmithyUpgraded byGolem WorksUpgraded byPowerBossCualli, Kamasan Smith
IBronzeworks
IIChamber of Iron
IIIGolden Forge
IVImmaculate Forge
Forging WorkbenchForging MechanismMasterwork Forge
SpymasterBossXalapa, Spy Master
ISpymaster's Study
IIHall of Shadows
IIIOmnipresent Panopticon
IVEspionage Core
Synthflesh LabUpgraded byFlesh SurgeonUpgraded byPower
IProsthetic Research
IISynthflesh Sanctum
IIICrucible of Transcendence
IVSupremacy of Function
ThaumaturgeUpgraded bySacrificial ChamberBossKulka, Vaal Thaumaturge
IThaumaturge's Laboratory
IIThaumaturge's Cuttery
IIIThaumaturge's Cathedral
IVThaumaturge's Culmination
Gemcutting MechanismGem Corrupter
Transcendent BarracksUpgraded bySynthflesh LabUpgraded byPower
IISteelflesh Quarters
IIICollective Legion
IVChamber of the Perfected
Jiquani's VaultAugments Vaultrestricted
Kishara's VaultCurrency Vaultrestricted
Extraction Chamberrestricted
Extraction Workbench
Vault of ReverenceLineage Gems Vaultrestricted
Royal Access Chamberrestricted
Tablet Research VaultTablets Vaultrestricted
Corrupted Precursor Machine
Terraforming Research: WaterTerraforming Researchrestricted
Terraforming Research: MountainTerraforming Researchrestricted
Terraforming Research: GrassTerraforming Researchrestricted
Terraforming Research: ForestTerraforming Researchrestricted
Terraforming Research: SwampTerraforming Researchrestricted
Terraforming Research: DesertTerraforming Researchrestricted
Ancient Reliquary VaultUniques Vaultrestricted
Architect's Chamber
Atziri's Chamber
Sacrifice RoomSacrifice a Room to Upgrade Sacrificial Chamber
Sealed VaultTreasure Vault