You can add your friends to the game using the in game menu.
How to invite players in killing floor 2.
Killing floor 2 features cross platform multiplayer functionality on pc between epic games and steam.
Learn to help youself.
In theory that invite window shows those your steam friends who have the killing floor 2 and online.
Killing floor 2 private match how to play killing floor 2 with friends.
To create a private match in killing floor 2 all you need to do is add your friends to the game and matchmake.
Lots of pc players want to know whether killing floor 2 is cross platform between steam epic games and consoles thanks to the shooter becoming a freebie.
When a friend is in a game and you get the server is not responding message then.
I guess some of your friends have the killing floor 2 am i right.
If they have then maybe they did not accept your invitation.
Only ask after you made the effort step 2 the friends tab doens t work properly.
If not then that is the problem.
To ensure that we don t divide the pc player base we ve worked hard to enable cross play and cross invite between steam and egs versions of the game so that the entire pc community can play together.
Only these things i can think to cause your problem.