Facepunch.Steamworks Wiki

Steamworks.SteamServerInit.VersionString

Syntax

Description

The version string is usually in the form x.x.x.x, and is used by the master server to detect when the server is out of date. If you go into the dedicated server tab on steamworks you'll be able to server the latest version. If this version number is less than that latest version then your server won't show.