Strategic Resources
Strategic Resources are used to create weapons, armor and accessories that increase the effectiveness of heroes and units, and are also required to create advanced 
City Improvements and 
Expansions.
Mechanics
There are three tiers of strategic resources, revealed in 
Eras I, III, and IV. These eras also contain technologies that enable an empire extract to those revealed resources.
Strategic resources may also be purchased from the Marketplace, unlocked by Imperial Coinage in Era II, without the necessary era or extractor technology.
Some Naval Facilities generate strategic resources. These are revealed once any empire reaches eras I, III, or IV, and do not require any extractor technology.
A strategic resource deposit adds an additional +1 
Science to the tile's yield.
Vaulters can use a single strategic resource as a "Holy Resource", consuming units of the resource in exchange for an empire-wide bonus, similar to 
Luxury Resources.
Table of Strategic Resources
| Image | Name | Revealed | Extractor | Booster effect | Lore | Artwork |
|---|---|---|---|---|---|---|
|
 Titanium
|
Era I
|
Alchemist's Furnace | +20% on Cities
|
Occuring in mineralized form, the extraction of titanium is a complex process for an alchemist, but the effort is worth it. Light, strong, and resistant to water damage, this metal can transform armies. | 
|
|
 Glassteel
|
+20%  on Cities
|
Sprouting in tangled fronds, the vines, when heated in sealed vats with sundry chymicals, can be drawn out into incredibly strong filaments that have myriad uses, such as garroting wire. | 
| ||
|
 Adamantian
|
Era III
|
Smelting Station | +20%  on Cities
|
No material except diamonds comes close the the unbreakable nature of adamantian. Recent advances in smelting now allow craftsmen to extract this metal for many uses. | 
|
|
 Palladian
|
+20%  on Cities
|
This roseate mineral which expands in geometric-shaped waves, grows from patches of earth rich with fossilized remains. Clever treatments allow the mineral to be transformed into a light, regenerative mail. | 
| ||
|
 Mithrite
|
Era IV
|
Rare Metal Foundry | +15% on Cities +15% on Cities
|
Mithrite, or "Emerald Lances", once purely used for decorative flourishes in the halls of the exalted, is now understood to be a powerful Dust-enhancing substance when prepared in a special crystalline form. | 
|
|
 Hyperium
|
+15% on Cities +15% on Cities
|
For long ages, perhaps because of the noxious clouds that hung over deposits, Hyperium's amazing fertilizing powers were unknown. Now, by using sophisticated filtering masks, this miracle substance can finally be exploited. | 
|
Yield Modifiers
| Modifier | Type | Effect |
|---|---|---|
| Mining Rights | City Improvement
|
+1 on extractors in city
|
| Volcanic Leecher | City Improvement
|
+5 on extractors in city, requires exploited Volcanic tile
|
| Mining Authority |  Broken Lords Skill
|
+0.5 per level on extractors in governed city, 3 levels
|
| Geomantic Wiles |  Kapaku Skill
|
+1 per level on extractors in governed city, 2 levels
|
 Silics
|
Assimilation Bonus | +0.5 per pacified village on strategic resource extractors, empire wide
|
| Holy Resource
|
Vaulters Trait
|
|
| Inefficient Extraction |  Mykara Trait
|
-50% yield on
|
| Strategic Intensifier |  District
|
x2 yield on resource extractoro
|