Local Multiplayer 2 Person

Ok, so me and my friend decided to mess around in unity, and we each made a terrain. We implemented a player controlled sphere as a 3rd person camera and modified our own spheres (flying, shooting, etc). But we can’t seem to figure out how to just make a local multiplayer 2 person game where im rolling my ball around my screen, but hes also on the same map and we can interact, and vice versa. All I’ve figured out is that it will probably require c# sockets, but I’m not entirely sure what that is haha. Anything would be useful, thanks!

yes it is possible
there are many tutorials on websites like YouTube
hope this helped!