Against the Storm · Citadel upgrade
Brass Forge 02: Neighborhood
This Brass Forge tier raises global production speed and unlocks the Neighborhood Hearth upgrade.
How it works
The level 5 row lists Brass Forge 02 with +4% Global Production Speed and the fundamental reward “Hearth Upgrade : Neighborhood unlocked.” The source records this as an unlock but does not explain the Neighborhood upgrade’s effects or requirements. The overview says Brass Forge allows Hearth upgrades as part of its progression.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.