Find the gain
New cash per second minus current cash per second. The difference must be positive.
No named tier data is published in the sources checked. Enter two to eight player-observed upgrade choices to get an explainable, stable payback and gain ordering without inventing named game tiers.
Enter two to eight choices exactly as you see them. The tool ranks only positive rate gains; it does not preload or name game upgrades.
Tie order: shortest payback, then highest gain per cost, then the order entered. Recheck the live rate after buying.
Every row uses the same three-step method, and invalid choices remain visible instead of disappearing.
New cash per second minus current cash per second. The difference must be positive.
Upgrade price divided by the positive rate gain. A shorter time ranks higher.
Higher gain per cost wins the first tie; the order entered resolves an exact tie.
Payback answers one question: how quickly the added rate could recover the price. A beginner may still prefer a cheaper unlock, and future unlock requirements or replacement risk can matter more than the first rank. Recheck the live rate after each purchase.
No. Exact upgrade names and stats are not available from the public sources checked. This page ranks only the price and rate values you enter.
Payback connects upgrade price to the added cash per second. It gives different-sized choices one consistent comparison instead of assigning unsupported S-to-F tiers.
The row stays visible under Needs attention. A zero or negative rate increase cannot produce a positive payback time.
No. It repays fastest for its price. A more expensive choice may add more cash per second while taking longer to recover its cost.