Arctherus was an Alimbic great, who discovered neurogenesis and marked an advent of the modern Alimbic era in a time of peace and prosperity. His remains lie in the Science Sarcophagus in the High Ground room of Alinos. Little else is known about him.
- In the Spanish version of the game, Arctherus was given a first name: Insigne.
|Known Areas||Tetra Galaxy • Alimbic Cluster • Celestial Archives • Alinos • Vesper Defense Outpost • Arcterra|
|Characters||General Almiiak • Arctherus • Gorea|
|Creations|| Quadtroid • Oubliette • Octolith • Alimbic Artifact • Slench • Cretaphid • Stronghold Void (Portal) |
Alimbic Cannon • Omega Cannon • Universal Ammunition • Seal Sphere • Technology • Colored Panels
|Miscellaneous||Language • Tetra Border Wars • Hubs • Objects (Minor) • "Ultimate Power"|