Whiteout Survival Crystal Laboratory: How to Refine Fire Crystals Most Cost-Effectively?
Data-driven guide to Fire Crystal refinement in the Crystal Laboratory. Learn the most cost-effective strategies using the daily half-price mechanic — perfect for F2P to whales.
Cost Breakdown by Tier (Full Price)
Base costs without using daily half-price. Efficiency drops sharply starting from the 41st refinement.
| Tier | Cost per Refine (FC) | Expected Refined FC | Cost per Refined FC | Rating |
|---|---|---|---|---|
| 1–20 | 20 | 1.45 | 13.79 | Best (Baseline) |
| 21–40 | 50 | 2.15 | 23.26 | +68% cost |
| 41–60 | 100 | 3.18 | 31.45 | +128% cost |
| 61–80 | 130 | 3.44 | 37.84 | Expensive |
| 81–100 | 160 | 3.71 | 43.13 | Very Inefficient |
Optimal Weekly Strategies (Monday Rush + Daily Half-Price)
Choose the plan that matches your Fire Crystal reserves and how urgently you need Refined Fire Crystals.
Cost per Refined FC
6.9Monday Refines: 1 per day (all half-price)
70 10.2Cheapest per piece, but only ~10/week. Only for extreme Fire Crystal shortage.
Cost per Refined FC
11.38Monday Refines: 14 on Monday + 1/day
330 29Solid entry plan — fully utilizes Tier 1. Good for low-reserve players.
Cost per Refined FC
12.89Monday Refines: 20 on Monday + 1/day
540 41.9F2P sweet spot & community favorite. +44% output for only +210 FC vs L2. Highly recommended!
Cost per Refined FC
17.22Monday Refines: 34 on Monday + 1/day
1240 72Standard mid-game plan — captures full Tier 2 value.
Cost per Refined FC
18.55Monday Refines: 40 on Monday + 1/day
1690 91.1Best before cost exceeds ~20. Offsets Tier 3 with half-price. Great for T1/mid-spenders.
Cost per Refined FC
22.79Monday Refines: 54 on Monday + 1/day
3090 135.6Efficiency falls off. Avoid unless rushing important upgrades.
Cost per Refined FC
24.19Monday Refines: 60 on Monday + 1/day
3780 156.2Whale stopping point. Squeeze last value from Tier 4 before 80-FC half-price.
Cost per Refined FC
27.4Monday Refines: 74 on Monday + 1/day
5600 204.4Poor value. Heavy resource sink — only for extreme progress chase.
Cost per Refined FC
28.54Monday Refines: 80 on Monday + 1/day
6470 226.7Tier 5 — even half-price costs 80 FC. Only in emergency overflow situations.
Cost per Refined FC
31.26Monday Refines: 94 on Monday + 1/day
8710 278.6Zero efficiency. Pure whale max-out mode.
Key Tips & Reminders
Most Players Should Choose L3
26 refines/week offers the best balance of cost and output for the vast majority of players.
Never Arbitrarily Round Numbers
Avoid stopping at 30, 50, etc. — these land in full-price zones and waste the half-price benefit.
Monday Precision Is Critical
Hit exactly 20 / 40 / 60 refines on Monday to leave the expensive slots for half-price days (Tue–Sun).