How a CS2 item order book works

An order book turns many buyer requests into one readable view of demand. Sellers see the strongest funded price first instead of scrolling through duplicate cards for the same item.

Exact items form a market

Orders should stack only when their Steam market identity and supported variant are equivalent. A Souvenir item is not interchangeable with a normal item, and StatTrak, exterior or other market-name differences can form separate books.

Price priority comes first

The highest funded bid normally receives supply first because it offers the strongest payout to a seller. If several buyers bid the same price, earlier valid orders can receive time priority. Expired, cancelled or unfunded demand must not remain executable.

Remaining quantity matters

A seller needs to know how many units can be accepted now, not only the original target. Partial fills reduce remaining demand. When remaining quantity reaches zero, that order leaves the active book.

Why funding is locked

Each published request should reserve enough account balance for its unfilled quantity. Locked funding prevents the same dollars from backing several unrelated requests and helps stop more assets being reserved than a buyer can pay for.

What a seller should verify

• The exact Steam market name and tradable status.
• The current best price and total payout.
• The number of assets selected for this reservation.
• The buyer’s verified Steam Trade URL and recipient account.
• The expiry time and transaction status shown by the server.

What happens when an order ends

Completed orders leave the book when remaining quantity reaches zero. Cancelled or expired orders stop accepting reservations, and their unused locked value returns to the buyer’s available balance according to the platform rules.