All Factories and Tier Logic
Factory value depends on recovery speed, synergy with workers, and rebirth timing impact.
Practical Tier View
S-tier usually includes top shiny or enchanted options with elite throughput. A-tier includes stable earners with reliable ROI. B-tier remains useful in early fills and bridge periods.
Build Your Own Tier List
Use [Tier List Maker](https://tierlistmaker.online/) and compare results after changing upgrade assumptions.