Back 4 Blood is already proving to be a multiplayer hit, and plenty of players will want to take advantage of the cross-platform feature within the game.

How to a dd friends in Roblox There are three ways to add friends in Roblox using your PC. You can add a friend while using the search field in your home page or while playing a Roblox game.

Roblox is getting cross-platform play between the Xbox One, the PC, and smartphones, starting later this week.

There's no universal system yet, so if you want to get the gang together for some zombie-slaying fun, here's how to add cross-platform friends in Back 4 Blood.