Always check server list and it's empty :(.

Is steam more active? Best part of sam games was the co op.

Personally I prefer to complete games solo first then having some coop fun.

Yea I've completed the campaign already figured others have over the weekend but the server list is dead :(.

I'm still at level 3. After update the stopped working for me. So I'm started from scratch.

I enjoy co-op but want to finish the game first before doing the co-op. It's the way I have always played a SS game. I want the satisfaction of finishing the game on my own first.

Finally beat it. Surprised there is no additional difficulty after completing on Serious. But looks like not a lot of people plays coop and those who play, most likely kick you from server...

Yeah my server list is empty too and when I host a game nobody joins. Have tried disabling firewalls too.