Guard against inflation and runaway accumulation
GDC-L1-ECON-000401
Statement
Unchecked faucets — and positive feedback loops that scale rewards with the wealth or progress a player already has — cause inflation: currency loses value, stockpiles pile up, and spending stops mattering. Monitor the money supply and drain the excess. The symptom looks like "the content got trivial," but the cause is economic.
02
Rationale
Inflation is the natural end state of an economy whose faucets outpace its sinks, and it's made worse by feedback: if wealthier players earn faster (a positive loop — SYS-0004), the money supply grows super-linearly and value collapses [S-economy-design]. Its damage is insidious because it disguises itself — designers see rewards feeling meaningless, prices feeling trivial, new players unable to afford anything a veteran casually owns, and reach for content or difficulty fixes when the real cause is too much currency chasing too few sinks. This is the economic face of runaway positive feedback (SYS-0004) and of the unplanned power curve (PROG-0006): unchecked accumulation trivializes the game whether the resource is gold or raw power.
03
Applies when
Persistent and long-lived economies especially — MMOs, live-service, economy sims — and any game where resources accumulate across a long play horizon.
04
Does not apply / Exceptions
Idle/incremental games are deliberately inflationary — the exploding numbers are the appeal, and they control it by scaling costs alongside income rather than by stabilizing value. Short, non-persistent economies rarely inflate meaningfully. Mild, managed inflation can even be healthy (it pressures players to keep engaging with the economy rather than sitting on a hoard).
05
Implementation
Track the total money supply and prices over time, not just per-player balances (telemetry — PLAYTEST-0005). Avoid or dampen faucets that scale with wealth/progress (SYS-0004). Keep hard sinks (ECON-0003) sized to the money being generated, and scale sink costs with wealth so the richest players still drain. Treat "rewards feel meaningless" as a possible economy signal, not just a tuning-numbers one.
06
Disagreement
Stable-value design (fight inflation to keep purchasing power and new-player viability) vs. managed-inflation or deliberately-inflationary design (idle games; or mild inflation used to keep players economically active). The right stance depends on whether stable value or growth- as-spectacle serves the game.
07
Notes
The economic form of SYS-0004 (runaway positive feedback) and PROG-0006 (runaway power); its primary countermeasure is deliberate sinks (ECON-0003). Confidence 4.
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Connected principles
S