5. Simulation mode
Last updated:
A simulated bot consumes the venue real prices but sends no orders: it fills them in memory. It charges fees and applies slippage, so the result is not artificially optimistic.
What simulation does not reproduce:
- Book depth: an order fills in full the moment its price is touched.
- Queue priority for post-only orders.
- Liquidation by the venue.
The mode is fixed at creation and cannot be changed: mixing simulated and live fills in one history would make its PnL meaningless.