What the bands mean
What the score is built from
Four components, each contributing up to 25 points:- Sink-to-source balance (25 pts). Closer to the 1.2–1.5 band, higher the score. Full detail: Sink-to-Source Ratio.
- Price stability (25 pts). How much the effective price of typical items is drifting. Tied to Inflation Rate.
- Currency velocity (25 pts). How quickly earned currency gets spent. Healthy games spend it within a few days. Stockpiling behavior drops this score.
- Payer distribution (25 pts). Penalizes over-reliance on a tiny whale base — a game where 99% of revenue comes from 0.5% of players is fragile.
What moves the score
- Adding a sink (a new premium item, an upgrade cost) usually raises the score.
- Boosting a faucet (an event that hands out free currency) usually lowers it temporarily. That’s fine — just make sure you have sinks to absorb the inflow.
- A balance update that nerfs the best sink (e.g. making the top gear cheaper) can drop the score 10+ points if it unanchors price expectations.
- A major content patch often moves the score ±5 points for a week, then settles.
What the score is not
- Not a predictor of revenue. It’s a predictor of stability. You can have high revenue on a 40-score economy, but it’ll be fragile.
- Not a ranking against other studios. It’s absolute — tuned against known-healthy F2P economies.
- Not a replacement for judgment. Sometimes a low score reflects a deliberate choice (e.g. a generous launch event). The dashboard lets you annotate dips.

