The Center boss encounter pits survivors against Broodmother Lysrix and Megapithecus at the same time.
Encounter: The Center ArenaVerified
GAMMA
Gamma
Player level 70
Requirements
Artifact of the Brute×1
Artifact of the Clever×1
Artifact of the Devourer×1
Artifact of the Hunter×1
Artifact of the Massive×1
Artifact of the Pack×1
Strategy
Fight both guardians in the same arena. A strong bred Rex/Acro army with a Yutyrannus is a common ASA approach; avoid the arena edges and focus targets to reduce incoming pressure.
Tek / engram unlocks
Tek FoundationTek GauntletsTek HatchframeTek ReplicatorTek TrapdoorTek WindowTek Windowframe
BETA
Beta
Player level 80
Requirements
Artifact of the Brute×1
Artifact of the Clever×1
Artifact of the Devourer×1
Artifact of the Hunter×1
Artifact of the Massive×1
Artifact of the Pack×1
Argentavis Talon×10
Basilosaurus Blubber×10
Megalania Toxin×10
Megalodon Tooth×10
Sarcosuchus Skin×10
Sauropod Vertebra×10
Spinosaurus Sail×10
Thylacoleo Hook-Claw×10
Titanoboa Venom×10
Tusoteuthis Tentacle×10
Strategy
Use high-quality saddles and a well-bred army. The extra apex-drop cost makes preparation significantly heavier than Gamma.
Tek / engram unlocks
Sloped Tek RoofSloped Tek Wall LeftSloped Tek Wall RightTek BootsTek CatwalkTek CeilingTek Dinosaur GateTek Dinosaur GatewayTek DoorTek DoorframeTek Fence FoundationTek GeneratorTek LadderTek PillarTek RailingTek RampTek RifleTek StaircaseTek TroughTek Wall
ALPHA
Alpha
Player level 90
Requirements
Artifact of the Brute×1
Artifact of the Clever×1
Artifact of the Devourer×1
Artifact of the Hunter×1
Artifact of the Massive×1
Artifact of the Pack×1
Argentavis Talon×25
Basilosaurus Blubber×25
Megalania Toxin×25
Megalodon Tooth×25
Sarcosuchus Skin×25
Sauropod Vertebra×25
Spinosaurus Sail×25
Thylacoleo Hook-Claw×25
Titanoboa Venom×25
Tusoteuthis Tentacle×25
Strategy
Bring a fully prepared boss army with strong saddles, imprinting and Yutyrannus support. Alpha requires 25 of every listed apex tribute.
Tek / engram unlocks
Mosasaur Tek SaddleRex Tek SaddleTek GrenadeTek HelmetTek Turret
Higher difficulties include the Tek / engram unlocks from lower difficulties unless the live game specifically handles that encounter differently.