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V2 Economy Simulation

in hours, snapshot interval, and stability threshold.

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V2EconomySimulation is the forward-modeling tool for checking whether a currency economy inflates, deflates, or stabilizes after a configured number of hours. It uses the V2 currency catalog, player population assumptions, starting balances, and source/sink flow rules.

Model#

  • FV2EconomySimulationConfig defines the simulation id, player count, duration in hours, snapshot interval, and stability threshold.
  • FV2EconomySimulationInitialBalance defines starting supply per player for a currency.
  • FV2EconomySimulationFlowRule defines a source or sink with amount per event, events per player per hour, active-player fraction, and an optional hour window.
  • SimulateEconomy projects total source flow, applied sink flow, unfunded sink demand, ending supply, net flow per player per hour, and trend.

Interpretation#

A currency is Inflating when supply growth exceeds the configured stability threshold. It is Deflating when supply loss exceeds the threshold or when sink demand cannot be funded by available supply. Otherwise it is Stable.

Use source rules for quest rewards, match payouts, crafting refunds, vendor sell grants, and live-event grants. Use sink rules for vendors, repairs, crafting costs, auction fees, fast travel, rerolls, and other repeatable spends.

Validation#

Run python3 V2/ue/Tools/check-v2-economy-simulation.py after changing the simulation runtime, contract, docs, or CI/Horde wiring. The checker verifies source/sink modeling, N-hour projection, trend classification, unfunded sink demand, periodic snapshots, summary formatting, and invalid rule rejection.