Arcterra is the farthest planet from the Alimbic sun in the Tetra Galaxy, and by far the coldest. Because of the extreme cold, it is populated mostly by machines, such as Voldrums, Psycho Bits, and Guardians, as well as the odd Alimbic Turret.
Arcterra is a desolate, dark and icy world, with a bleak sky hanging over crumbling Alimbic ruins. A network of narrow tunnels and caves wind throughout the planet, and Ammolite and Witherite crystals are common. Very little natural life exists on Arcterra, and most of its inhabitants are mechanical Alimbic sentries. However, hardy vermin like Geemers, Zoomers and Shriekbats have managed to survive in pockets on the planet, and some have adapted to its frigid climate, like the Blue Barbed War Wasp. Largest of the creatures native to Arcterra is the Arctic Spawn, which lurks beneath the snow.
Complete Map of Arcterra: 
Metroid Prime Hunters
The outermost planet in the ALIMBIC CLUSTER, ARCTERRA is an inhospitable wasteland noteworthy for a honeycomb of tunnels and caves within its frozen interior.
Arcterra (The Ice Cave)
"This planet is located at the farthest reaches of the Tetra Galaxy. Arcterra is a barren and frozen world with caves and underground catacombs."
Arcterra is a portmanteau of "terra", which is Latin for Earth or land, and "Arc", which is Latin for cold.
The word Arctic comes from the Greek αρκτικός (arktikos), "near the Bear, arctic, northern" and that from the word άρκτος (arktos), which means bear. The name refers to the constellation Ursa Major, the "Great Bear".
- The second theme for Arcterra's lower areas is similar to the Phendrana Drifts' main theme.
- Noxus and Trace are encountered for the first time here.
- Like Alinos, during the first visit on Arcterra, one of the hunters is encountered on the way to the first Octolith while the other is encountered during the escape.
- In multiplayer, when selecting the map, Fault Line is featured twice, one with just the Fault Line arena, and the other featuring Fault Line with a shortcut to Subterranean. However, the two arenas' names are incorrectly switched.
|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"|
|Planets visited in the Metroid Series|
|Other locations visited in the Metroid Series|
|Planets in the Metroid Series|
|Bilium | Oormine II | Tallon IV | Twin Tabula | Zebes|
|Alinos | Arcterra|
|Aether | Dark Aether|
|Federation Solar System|
|Bryyo | Elysia | Norion|
|Unknown Solar System|
a.k.a. Planet SN-883 or Urtraghus ("large booty")
|SR388's solar system|
|SR388 | "SR387"|
|Earth | Jupiter|
|Charybdis | Inteira | Scylla|
|Excelcion | Talvania | Bion|
|Outlaw | Maru | Agricultural world | Jatsuk | Ocean world |
Graveyard planet | Galactic ruins
| 2466 URSA | Bes III | Devon III | Daiban | Demon Planet | Degrade |
Jamoru | Jasdam | Jigrad | K-2L | Kankeh | Liberty
Mondreus | Naishii | Nest | RX 338 | Solairon 12 | Tivus | Vho