Market, barter & escrow
Trade is between real players.
Sell offers reserve goods. Buy orders reserve coin. Purchases validate the inspected version and quantity. Barter uses published fungible payment terms. Regional depots retain physical custody after purchase. Players can cancel unaccepted offers, transfer gifts, and use delivery contracts; nothing supplies NPC liquidity or auto-fills an order.
Verification: Ledger and stale-quote tests, browser trade journeys and four synthetic economies totaling 94 trades with conserved inventory.
Remaining: Observed liquidity, pricing, population mix, currency circulation and logistics over long-lived player cohorts.