Game economy calculators · live market rates
What should you buy next — and when does grinding stop paying?
That depends on your cash, your income and what you already own, so no static page can answer it for you. We build the calculators that can: they take your numbers as input and do the marginal-cost arithmetic. Plus live exchange rates for the four game currencies that trade on an open market.
Sample output — wings upgrade planner
Bloom → Woodland: 63.3M Cash per +1.0× stamina
That is 13.5× more per point than the step below it. The sticker price ("just 9.5M more") never tells you that — the marginal cost does.
Run it with your numbers →Calculators
Roblox · upgrade cost curve
+1 Wings For Eggs — wings upgrade planner
"Which wing should I buy next — and which tier is a trap?"
Enter the Cash you hold and the wing you own. Get the tier to buy next, what each wing really costs per point of stamina, and where the ladder stops being worth climbing.
Albion Online · live arbitrage
Cross-city arbitrage calculator
"Which city should I sell this in right now?"
Live best orders across every major city, ranked by net profit after market fees — with your own territory bonuses applied.
How this site works
All guides →Data standard
How we source and verify game data
Four confidence levels, and what we publish when a number cannot be verified.
Upgrade economics
Why upgrade costs cannot be estimated linearly
The marginal-cost arithmetic that finds where climbing stops being worth it.
How we choose what to build
What answers an AI cannot give
Why we build calculators for questions that depend on your own numbers.
What we will not do
We do not fabricate a number to fill a page. When a data source is down you will see a collecting state, not a plausible figure. We do not review a figure's date without re-checking the figure. And where a table's numbers are unconfirmed, the page says so next to the numbers — not in a footnote. The full standard is in our data-sourcing guide.