Fire Crystal Age
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The Fire Crystal Age is the late-game progression phase of Whiteout Survival, which begins once the Furnace reaches level 30. In this phase, further city growth requires Fire Crystals on top of standard resources, and a new line of troops becomes available. A state normally enters the age around its sixtieth day.
Fire Crystal levels
From level 30, the Furnace advances through ten Fire Crystal levels (FC1--FC10), each upgraded with Fire Crystals and Refined Fire Crystals on top of Meat, Wood, Coal and Iron. Several other buildings gain matching Fire Crystal variants -- including the Fire Crystal versions of the Command Center, Embassy, Infirmary and the Infantry, Lancer and Marksman camps -- which are also upgraded with Fire Crystals.
Each Fire Crystal level is reached through five upgrades: four intermediate sub-levels, then the level itself. The Furnace goes F30-1, F30-2, F30-3, F30-4, then FC1; then FC1-1 to FC1-4, then FC2; and so on to FC10. Going from level 30 to FC10 is therefore fifty upgrades, not ten.
What the whole climb costs
Totals for the fifty Furnace upgrades, from F30-1 to FC10. Construction times are base values, before construction speed bonuses, Research and pet skills. Every other Fire Crystal building carries its own separate cost.
| Fire Crystals | Refined Fire Crystals | Meat | Wood | Coal | Iron | Base time | Power gained |
|---|---|---|---|---|---|---|---|
| 11,610 | 870 | 5,050,000,000 | 5,050,000,000 | 1,010,000,000 | 257,500,000 | 695 days | 3,231,000 |
Per-level figures for each building are on its own page.
Buildings with Fire Crystal levels
- Furnace -- 50 upgrades, F30-1 to FC10
- Command Center -- 50 upgrades
- Embassy -- 50 upgrades
- Infirmary -- 50 upgrades
- Infantry Camp, Lancer Camp, Marksman Camp -- 50 upgrades each
- War Academy -- 45 upgrades, starting at FC1-1: the building itself only exists from Fire Crystal level 1
What the age unlocks
- Fire Crystal troop levels. Once a state has entered the age, troop camps can be upgraded past level 30. Completing a Fire Crystal level instantly upgrades every troop of that type, at no extra cost, from T10 through FC1 to FC10 -- these strengthen existing T10 troops rather than adding a separate tier.
- The Crystal Laboratory, which produces Fire Crystals, opens around Fire Crystal level 5.
- T11 (Helios) and T12 (Exalted) troops, unlocked through War Academy research. They are trained with Fire Crystals and represent large power jumps over T10.
Fire Crystals
Fire Crystals are produced at the Crystal Laboratory and earned from events such as State vs State, King of Icefield and Mercenary Prestige. They pay for Fire Crystal building upgrades and for training Helios and Exalted troops. Refined Fire Crystals are a separate, scarcer material used alongside them from the higher Fire Crystal levels onwards.
Where it falls in a state's life
The age opens around day 60 and spans most of a state's later life: Fire Crystal level 5 and the Crystal Laboratory arrive around day 150, and Fire Crystal level 8 around day 330. The intervals matter more than the exact days. Progression holds the full timeline.