Thought I'd post this as the existing instructions are somewhat out of date Install SteamCMD http://media.steampowered.com/installer/steamcmd.zip SteamCMD is a command-line version of the Steam client primarily used for updating dedicated servers Extract steamcmd.zip to a folder on your computer/server Open a command prompt and navigate to the folder and run steamcmd.exe It will run through an update process and present you with Steam> prompt when done Type login steamusername Where steamusername is the Steam username of an account that has downloaded the "Monday Night Combat Dedicated Server" files from the "Tools" section of steam (doing this grants that account a 'license' to download the server files) Enter password/steamguard ID as appropriate Once login is successful, at the Steam> prompt enter app_update 63220 This will download the MNC Dedicated files to <directory where SteamCMD was run from>\steamapps\common\Monday Night Combat Dedicated Server\Binaries\Win32 Navigate to that same folder to see/run the dedicated server files.