I think it would be easier to make a game with your friends. Is there a way to do this? If not, please put it in, it would be awesome to make a game with your friends!
What do you mean by making a game with your friend? If you mean being able to have many people working together on the same project from different pc, you can use source control such as git (using https://github.com/ for exemple) or perforce if you are more serious. See the UE doc below Source Control | Unreal Engine Documentation to set it up.
If you mean creating multi player games (which I doubt), that’s totally doable through UE4 player controller class and for online games through UE4 client server model (Client-Server Model | Unreal Engine Documentation).
Hope that answer your question.