"Pterodactyl Panel is the free, open-source, game agnostic, self-hosted control panel for users, networks, and game service providers" -- I'm sorry I still don't understand what it does.
I play mostly single player games, but I'm familiar with LAN games: One guy becomes "host" and the rest "join" him. This setup happens inside the game UI. Where does a "Game Server Management" software fit?
It's made for administrating dedicated servers, where the host does not actively participate in the game. This has several major advantages.
* Performance: The server does not need to render the UI, and is often completely headless (hence the use of this software).
* Fairness: The host in your scenario has zero latency, giving them a competitive advantage over players with tens or hundreds of milliseconds of network delay.
* Availability: Some games provide a persistent world with the ability to drop in and out at any time (e.g. Minecraft). No single player is present for the entire session.
For lots of games there is server software available (e.g. Minecraft) which allows a server to become host and all players can then join the server and play together. This panel allows to easily control those servers ;)
I play mostly single player games, but I'm familiar with LAN games: One guy becomes "host" and the rest "join" him. This setup happens inside the game UI. Where does a "Game Server Management" software fit?