Stations (Australian for a ranch/farm) in the Outback are absolutely huge and the nearest neighbor is usually hundreds of kilometers away. People stay in touch through satellite phones, internet, cb radio and kids get their education long distance through the brilliant School of the Air.
Even this should be pretty easy — just connect directly (easy on IPv6) or through whatever tunnel you need depending on the game. Tailscale comes to mind, but you could do L2 tunneling with OpenVPN if you need to simulate an actual LAN.
I don’t understand why you’d need a central server at all.
In a city, maybe, though some Australians live on pretty remote farms. Going to be hard to set up a LAN with your buddies down the street.
kagis for discussion
https://flemmingbojensen.com/2007/08/07/the-australian-outback/
Even this should be pretty easy — just connect directly (easy on IPv6) or through whatever tunnel you need depending on the game. Tailscale comes to mind, but you could do L2 tunneling with OpenVPN if you need to simulate an actual LAN.
I don’t understand why you’d need a central server at all.