Changelog entry
Black Market orderbook matching and embargo bypass fee (#596)
2026-03-25
- Black Market buy/sell orders now match deterministically each tick with price-time priority by resource.
- Executed Black Market trades apply a base **8% fee** (`BLACK_MARKET_FEE_BASE_BPS`).
- Trades between parties in an active embargo relationship are now allowed on the Black Market but apply an additional **30% embargo bypass premium** (`BLACK_MARKET_EMBARGO_BYPASS_PREMIUM_BPS`), for a total **38% fee**.
- Executed trades publish `BlackMarketTradeExecuted` event logs with fee and embargo-bypass details.