it’s possible for you to’t trade games from your library, only those in your inventory.
you might’t trade games on Steam if you don’t haveSteam Guardenabled.
In the Steam client, select your user name at the top and chooseInventoryfrom the drop-down menu.

it’s possible for you to only trade with people on your friend list.
If you want to make a deal with a stranger, you better add each other as friends temporarily.
Exercise caution when trading with strangers.

pick the friend you want to trade with.
Check to check that that the item your trading partner has offered is the item you want.
Move your mouse over each item and read the text that pops up.

Check the confirmation box and selectMake Offer.
you’ve got the option to’t undo or cancel a trade after clicking Make Offer.
Do not click Make Offer unless you are sure you want this trade to go through.

If the trade is successful, you’ll see a confirmation window.
How to Obtain Tradable Steam Games
There are three different ways to obtain a tradable Steam game.
it’s possible for you to no longer obtain tradable steam games with that method.
pick the game in your recent purchases and chooseI would like a refund.
Go to theSteam Digital Gift Cards pageand selectSend through Steam.
Go to your Steam Inventory and selectTrade Offers>Incoming Offersto accept trade offers on Steam.