image depicting network path between a user on the internet and a game server connected to a playit tunnel

Playit tunneling is an ultra convenient service you can use to host game servers without messing with your router. You can run a tunnel client on a Windows computer, a Linux computer, or even in a Docker container. It's completely free unless you want to use a custom domain, and if you know enough about domain records you can just point your own at the one they give you.