This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own Bug Evolution [🕷️] session. It will not click the shop.
Material planner
Evolution coin gap
Subtract the coins you already have from a coin target. The demo target is 200, the Housefly cost shown on October 27, 2026. It does not know other evolution prices.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
The only published coin cost is the Housefly from an October 27, 2026 walkthrough: level 12 and 200 coins. Other forms do not have a published coin price. If your evolve screen shows a different number, change the target. This does not calculate XP or levels.
![Bug Evolution [🕷️] Calculator](/media/optimized/727aed6a0120032041d04298-768.webp)