s&box Lobby Config Builder

What is a s&box Lobby?

In s&box, multiplayer is organised around lobbies — a small group of connected players sharing a scene. The host creates the lobby, declares its capacity and privacy, and gives it a name; other players either discover it through Networking.QueryLobbies() or jump in directly with a lobby ID via Networking.Connect( lobbyId ).

Facepunch's networking is purposefully simple— their docs say the goal isn't a bullet-proof server-authoritative stack, it's a system that's easy to use and understand. Lobbies are the entry point.

LobbyConfig Fields

All 6 fields, pulled directly from the s&box C# API schema (Sandbox.Network.LobbyConfig).

Common Patterns

Spawn a player on join

public sealed class GameNetworkManager : Component, Component.INetworkListener
{
    [Property] public GameObject PlayerPrefab { get; set; }
    [Property] public GameObject SpawnPoint { get; set; }

    public void OnActive( Connection connection )
    {
        var player = PlayerPrefab.Clone( SpawnPoint.Transform.World );
        player.NetworkSpawn( connection );
    }
}

Browse and join

var lobbies = await Networking.QueryLobbies();

foreach ( var lobby in lobbies )
{
    Log.Info( $"{lobby.Name} - {lobby.MemberCount}/{lobby.MaxMembers}" );
}

// Join the first one we found.
if ( lobbies.Any() )
{
    Networking.Connect( lobbies.First().LobbyId );
}