then select “Invite Players.” This opens the Epic Games friends list, where you can invite them to your party (and thus, your world). Once they are in the world, the World Holder must revisit ...

Ninja Time has a party system where you and your friends or other players in the server can tackle the various content ...

but unfortunately teaming up with friends in the free-to-play shooter is currently a struggle. However, there is an alternate way to invite players to a party so you don't have to fly solo.