How to Master Your Mobile Game Economy: Sources, Sinks & Soft Currency
Every coin you hand out is a promise. Here is how to balance sources and sinks, avoid inflation, and test your numbers before players do.
- Your economy is the balance of sources (currency in) and sinks (currency out) over time.
- Most economies inflate because sources are fun to add and sinks are not.
- Keep soft currency plentiful, hard currency scarce, and event currency temporary.
- Track median wallet balance and time-to-afford weekly.
Every coin your game hands out is a promise. Hand out too many and nothing feels valuable. Hand out too few and players feel robbed. A healthy game economy keeps that promise for years, and it comes down to one idea: what flows in must flow out.
Sources and sinks
A source is anything that creates currency: level rewards, daily login bonuses, rewarded ads, achievements. A sink is anything that removes it: upgrades, cosmetics, retries, crafting, energy refills. Your economy is the balance between the two over time. Try it below: tune what a player earns, what things cost and how often they buy.
Why most economies inflate
Sources are easy to add and fun to announce. Sinks feel like taxes, so teams avoid them. Over a few content updates the wallet of an engaged player climbs, prices stop mattering, and the store loses its pull. Once players are hoarding, every reward you give feels smaller.
- Median wallet balance growing week over week.
- Store conversion dropping while engagement holds steady.
- Players skipping rewarded ads because they don't need the coins.
- New content consumed within a day of release.
Soft, hard and event currencies
| CURRENCY | HOW IT IS EARNED | WHAT IT IS FOR |
|---|---|---|
| Soft (coins) | Gameplay, frequently | Upgrades, consumables, repeatable sinks |
| Hard (gems) | Rarely in play, mostly purchased | Time skips, premium cosmetics, passes |
| Event tokens | Limited-time events only | Event shop, expires when the event ends |
Keep soft currency plentiful and spendable. Keep hard currency scarce and predictable. Event currencies are a pressure valve: they create spending urgency without touching your core economy.
Design sinks players actually want
- Cosmetics that show status to other players.
- Upgrades with visible, felt power gains.
- Convenience (timer skips, extra slots) priced fairly.
- Collection sets that reward completion.
- Continues offered at the moment of highest emotion.
Measure it
Track currency earned and spent per daily active user by source and sink, median wallet balance by player segment, and time-to-afford for your key items. Review weekly. Economies drift slowly, then break suddenly.