Raspberry Pi port, piCore-15.0 is available!
Until you get a better reply,I don't know what this is and how it works. Based on the info written in it, it is a "Microsoft Visual Studio Solution File, Format Version 12.00" and it can only be converted into executable "Windows .exe" file.
What I actually mean in my before post is that this application can be compiled and used only on windows.Why don't you just continue with SteamCMD without any GUI ? Is it too hard ?Sorry for asking that because I have never even saw Steam. All the games I play are online free ones html5.