True when Ping is estimated from Steam relay locations rather than measured from a server query.

Round-trip latency in milliseconds, or -1 if unknown. Steam lobbies use a relay-route estimate.

The engine API version it's running - 0 if it doesn't say (a dedicated server's tags can be cut short).

True if this lobby is full (Members >= MaxMembers).

True if this lobby should be hidden from server lists.

True if it's Sandbox.Network.LobbyInformation.IsOutdated the other way - on a newer version than this one, which is what needs updating.

True if it can't be joined from this version of the game - it runs a different API version or network protocol. Lobbies like this are only listed when asked for (Networking.QueryLobbies with includeOutdated). What it doesn't say isn't held against it.

True if you need a password to join this lobby or server.

The network protocol it talks - 0 if it doesn't say.