Update October 2017: The issue is back visit here for updated instructions. UPDATE: It appears that Valve may of resolved this issue as I have tested without using the files and it now works first time. I will however leave the details here for reference. HLDS (GoldSrc) games use appid 90 to download the server files from SteamCMD. There is a bug that requires you to try and download the serverfiles many times before it starts downloading all the assets….