Mutual games in common

[vinniedamac]

Kind of like how you go to a friend's Facebook profile and you can see which friends you have in common (as "Mutual Friends"), how cool would it be if you could go to your friend's Steam profile and see which games you both own so you easily know which games you guys can play together.

Likewise if you're in a group chat, it'll display all the games that everyone in the group chat has.

[Gus the Crocodile]

You can for one friend at a time. Go to the game list on their profile, and tick the checkbox "filter to games you both own".

Can't do it for groups though, though there are third party websites that can help, at least.