I always keep Steam opened while I am on PC and when I play games. However, the Steam Overlay works fine in SCP except when I am in the menu and when I pause the game. Both screens won't let me show chat and other kind of stuff. It is also bugged sometimes.
Can this be fixed on a future patch?

TheEngiGuy wrote:However, the Steam Overlay works fine in SCP except when I am in the menu and when I pause the game.

Mmm, I wish this worked for me, I can't start the game with Steam. I get a memory access violation, even with SCP-087-B.

Works okay for me when I actually get in the game, usually the overlay breaks if I die + reload on Euclid or something.