Upgrades

Overview
The Scorched Queen has decided that the Smoldering City requires 7 new great work projects: the Obsidian Archives, the Monastery of the Vigilant Flame, the Pioneers' Gate, the First Dawn Headquarters, the Dim Square, the Brass Forge, and the Vanguard Spire. As you unlock Upgrades, Buildings will start to show up in your Smoldering City backdrop.

From the Upgrades tab of the Smoldering City, you can spend Citadel Resources ( Food Stockpiles,  Machinery and  Artifacts) to construct and upgrade these great works. Each great work improves your Settlements' chances for survival in a particular way, and certain upgrade levels will unlock new game features.

Upgrades
Each level of the great works grants:
 * Obsidian Archives - Queen's Patience: You gain a permanent -2% to the speed at which the Queen's Impatience grows. (max. -36%)
 * Monastery of the Vigilant Flame - Everlasting Flames: You gain a permanent +2% to the burning duration for all types of fuel burned in the Hearth (max. +24%)
 * Pioneers' Gate - Villager Speed Increase: +Every villager in your settlement gets a permanent +2% increase in their walking speed. (max. +24%)
 * First Dawn Headquarters - Unforeseen Riches: You gain a permanent +1% boost to the global chance of producing double yields. (max. +12%)
 * Dim Square - Quicker Trader Arrival: You gain a permanent +3% bonus to Trader arrival speed (max. +33%)
 * Brass Forge - Production Speed Increase: You gain a permanent +2% boost to global production speed in your settlement. (max. +22%)
 * Vanguard Spire - Gathering Technique: All resource nodes get a permanent +1 to available charges. (max. +12)

Other rewards include:
 * Obsidian Archives - increases the Citadel Resource rewards for completing a Settlement, and unlocks many new game features such as Consumption Control, Rainpunk Engines, Royal Expeditions, Timed Orders, Training Expeditions
 * Monastery of the Vigilant Flame - increases your Cornerstone pool and reroll chances
 * Pioneers' Gate - increases your Embarkation points, and extends the vision of your Settlements and your Embarkation range
 * First Dawn Headquarters - adds new Embarkation choices and increases your Embarkation points
 * Dim Square - allows and increases the number of Trade Routes, and improves the cost and availability of Perks/Blueprints from Traders
 * Brass Forge - allows Hearth upgrades, and increases worker and building capacities
 * Vanguard Spire - adds race-specific Housing to your Essential Buildings and improves your Caravan choices and Newcomers

Level Rewards
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List of Upgrades

 * Total number of upgrades: 88
 * Total cost of upgrades: Icon MetaResource FoodStockpiles.png 6416 Food + Icon MetaResource Machinery.png 475 Machinery + Icon MetaResource Artifact.png 544 Artifacts