Steam Community Market
Valve's own market - a flat 15% cut and money that can never leave Steam, but the one place that can't be hacked mid-trade.
The Steam Community Market is Valve's own built-in marketplace - the thing every other site on this list ultimately depends on for the underlying item economy.
Structurally the safest place on this list: items and money never leave Valve's own systems, so the bot-hijacking and API-abuse risks that hit third-party sites can't happen here. The buy-order system (set a target price, get filled automatically) is unique to it.
Steam Wallet funds can never be withdrawn to a bank, and Valve takes a flat 15% cut on every sale (5% Steam, 10% to the game) - why every other site on this list exists. A market-eligible account needs no purchase limits, mobile authenticator active 15+ days, and recent purchase history.
Tracked two ways here - regular market listings, and a partial, rotating scan of live buy orders (Steam rate-limits this hard). The buy-order side has become one of our biggest instant-sell datasets, built up gradually.
Live, computed fresh from our own database - see the full comparison for how every source is measured.