Obsidian Archive 05: Last Stand
This Obsidian Archive tier reduces Queen’s Impatience growth and unlocks Last Stand, with a listed 30-second grace period after maximum impatience.
Understand this choiceAgainst the Storm carries resources, upgrades, and experience between settlement expeditions. The Smoldering City’s Upgrades tab uses Food Stockpiles, Machinery, and Artifacts to construct and improve seven great works. The supplied Official Wiki passage records permanent settlement modifiers, including changes to Queen’s Impatience growth, Hearth fuel burning duration, villager speed, and resource-node charges. It also lists feature unlocks tied to specific upgrade levels, including Trade Routes, Hearth upgrades, Rainpunk Engines and Geyser Pumps, and The Commons. This reference selects ten concrete tiers and describes their listed effects and progression links. It does not compare their value or establish optimal choices.

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This Obsidian Archive tier reduces Queen’s Impatience growth and unlocks Last Stand, with a listed 30-second grace period after maximum impatience.
Understand this choiceThis Monastery tier increases Hearth fuel burning duration and grants one additional Cornerstone reroll per settlement.
Understand this choiceThis Pioneers’ Gate tier increases villager speed and grants one additional Embarkation Point.
Understand this choiceThis First Dawn Headquarters tier raises the chance of double yields and increases Citadel resources received upon finishing a settlement.
Understand this choiceThis Dim Square tier increases Trader arrival speed and adds one Cornerstone or Blueprint slot from Traders.
Understand this choiceThis Brass Forge tier raises global production speed and unlocks the Neighborhood Hearth upgrade.
Understand this choiceThis Vanguard Spire tier adds two charges to nodes and makes the Beaver House an Essential Blueprint.
Understand this choiceThis Brass Forge tier increases global production speed and unlocks Mine Upgrades.
Understand this choiceThis Obsidian Archive tier reduces Queen’s Impatience growth, unlocks Rainpunk Engines and Geyser Pumps, and lists ten starting Pipes.
Understand this choiceThis Monastery tier increases Hearth fuel burning duration and unlocks The Commons.
Understand this choiceA reference to ten specific Citadel upgrade tiers and their recorded settlement effects or unlocks, based on the supplied Official Wiki passages. Steam metadata establishes identity, not mechanics. Later changes and current meta are not independently verified.
Explanations prepared with GPT-6 Luna and checked against the linked references. These are source-reviewed guides. They do not establish independently tested optimal builds or exact upgrade budgets. How coverage works.