This is the place Samus first battles Spire. It consists of two levels. The first level has an Alimbic Artifact that is collected during the battle with Spire. The second level has a boss portal and a portal which takes Samus back to her gunship. There are entry doors on both levels. There is a hole on the second level leading to the first level.
- High Ground (via two Blue Doors)
- Alinos Gateway (via Portal)
- Stronghold Void 1 (via Stronghold Portal)
- Spire (On first visit only)
- Dialanche (Spire's Alternate form, On first visit only)
- Voldrum (On first visit only)
- Attameter Artifact
- Samus must destroy the two EnemySpawners and all the Voldrums. Then she must repel Spire. After scanning an orange switch, the Shield Key appears. The Attameter Artifact is nearby.
- "TELEPORTATION DEVICE ONLINE. STEP INTO THE PORTAL TO WARP TO ANOTHER LOCATION."
- Stronghold Portal
- "THREE ARTIFACTS ARE NECESSARY TO RESTORE FUNCTIONALITY."