Refined Fire Crystal Planner

Work backwards from the buildings you want to raise to the weeks and Fire Crystal a plan costs, with a Monte Carlo run on how much the finish week varies.

FC6 through FC8 upgrades need Refined Fire Crystal, and Super Refinement in the Crystal Laboratory is effectively the only source. You get 100 refinements a week, the cost per refinement steps up every 20 (20, 50, 100, 130, 160 Fire Crystal), and only the first refinement of each day is half price. The faster you push, the more Fire Crystal each RFC costs.

Tick the buildings you want to raise and this tool sums the Refined Fire Crystal and Fire Crystal required, then compares weekly paces side by side: weeks to bank it, Fire Crystal per RFC, and what one week saved actually costs. It also prints the day-by-day split (one block after the weekly reset, then one refine per day) and the base build time, so you can see whether resources or construction time is the real constraint.

Note: the day column is labelled Day 1 through Day 7 rather than by weekday, because the in-game English wording for the weekly reset has not been checked against the client (unverified).

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