Buried beneath the intersection of four decommissioned freight rail lines in the old industrial southwest, the Cruciform Depot is a subterranean interchange station that Axiom Industries mothballed in 2147 and formally abandoned in 2161. Its four converging tunnel arms stretch outward under the city like compass points, each arm now claimed by a different faction for storage, transit, or purposes less easily categorized. The central hub chamber—forty meters across and vaulted in cracked ferrocrete—serves as a neutral trading floor that none of the four arm-factions are willing to let any of the others control outright.

The Depot exists in a legal gray zone: Axiom's abandonment filing was never properly recorded with the city infrastructure authority, meaning no one has clear title and Ferrogate Security lacks a clean jurisdictional hook to enter without triggering a corporate arbitration process. This technicality is the Depot's most valuable asset, cited daily by the lawyers, fixers, and mid-tier operators who use the space precisely because it is, for practical purposes, unwatchable.