Originally Posted by Impact123
This looks like a C# WPF application, if my presumption is correct you could use mono.
By the way, hldsupdatetool was deprecated lately for some games, more (if not all) will follow sooner or later.
Yes, I imagine Mono will work since it's .NET.
Yes, HLDSUpdateTool is the old method, but many games still use it. SteamCMD is more challenging programatically because you deal with authentication. Fortunately seDirector will support it soon enough.