Hi!

I found the reason for the error. Antivirus COMODO Internet Security Premium put the program in a isolated container and blocked network connections for it
When I removed the isolation rule everything worked fine. Sorry to bother you, i completely forgot about the antivirus.

I have the last release version of the Steam client installed, not beta (see attachment). I don't have any customizations. I only use standard profile skins from Steam. I reinstalled the Steam client as you suggested, but nothing changed. The message appears again when the game starts.

I noticed ...

Hi!
When i starts the game from Steam Library i get а message "Couldn't initialize Steam API. Steam-related features are disabled.Restaring Stean usually fixes this issue." I have restarts the Steam client several times but I get the same error. Other games work with the Steam client without ...