Moving a game from game library to inventory on Steam

I was wondering if I could move a game from my library to my inventory.

Because my friend bought a game called "Lords of the Fallen", it does not work on his PC, so I was thinking if I could trade with him one of my own games that is in my inventory called "Torchlight 2" with his game in his library.

Is this possible ? Is there any time limits for this transaction?

Any help would be appreciated and thank you.

Solution 1:

No, this is not possible.

You cannot change items in your library into inventory items.

Solution 2:

This is not possible. Once a game is in your library, it is permanently added to your library and cannot be gifted, traded or otherwise transferred to someone else.

If your friend bought a game without checking the system requirements, they might be able to get a refund by asking Steam Support. Technically, Valve's policy is not to give refunds in this case but from personal experience they do (they at least give store credit) if the request is polite and the game genuinely hasn't been played.

Note that if your friend bought the game in the same transaction as other games, Steam may refund the entire transaction, including games in it that worked.