I would like to make a LAN party at my home with some friends but unfortunately my Brother moved a few hundred kilometers away; he leave the PC here.

Now my issue is, how could he join us and play together with us, like being in the room but playing in the LAN Multiplayer of old games, not online. So not only connecting 2 people but one local network to another person who basically joins the existing network.

How can I achieve that? Parsec?