Online PvP

Please, help me understand - how to make game fight like in “Clash Royale” - Player & Player. What do I need? Server, or other information.
Maybe UnrealEngine4 Guru read this)

I’d download the Shootergame project and study how that’s built. It features PVP, PVE (Bots), network functionality and is a good foundation to start building your game.

If you want to stay blueprint only, there’s the Multiplayer shootout project. Not as complex and worse as base to start off from, but good for learning as well.