FLOW STATE: a Korean economy you can touch, and judgment graded by reality
A 3D economic experiment that starts from the MONIAC water-flow model. Players steer a fictional Korean economy through 180-second crises with four policies; in the Reality League they read each week’s real issues, call next week’s market and are scored by actual closing prices.

The starting question
Can an economy be met as a machine you handle rather than a table of numbers, and judgment as a record that reality grades?
Approach
Household, industry, fiscal and financial reservoirs and an output pump are wired to the policy rate, household support, industrial investment and lending rules. The Reality League shows only issue cards public before each lock (Syuka World video titles and chapters, plus market data), scores calibrated confidence and records each call with a SHA-256 seal code.
Artifact and current status
On the public 0.4.0 release of October 28, 2026, a simulation run, the result screen, a scored Reality League practice round and seal/reveal-link verification were checked in a browser. Practice rounds are scored against Naver Finance daily closes.
Limits and what is not verified
Simulation coefficients and event effects are fictional teaching values, not economic forecasts or policy evaluations. The Reality League is not investment advice; judgment records stay on each device and there is no shared friends’ league server yet. Fun and balance have not been validated with real players, and the project has no affiliation with Syuka World.