Is Amber-Polished Drill Engine worth it?
Only late-game. About 300m coins — pricey at #9 of 12 per point; buy the cheaper sources first.
Amber-Polished Drill Engine is a drill that grants +100 ☘ Mining Fortune. Here's its live cost, value per point, and how it stacks up against the alternatives.
Pricey per point (#9 of 12). Only worth it once you've bought the cheaper sources — or for the endgame.
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About 300m coins right now (live Auction House price). It moves daily.
By coins per point it ranks #9 of 12 Mining Fortune sources — only after cheaper sources, or for the endgame.
+100 ☘ Mining Fortune. Best drill engine part, +100 ☘.
Maybe — the cheapest-per-point sources are listed on the Mining Fortune page, which is recalculated from live prices hourly.