Steam Workshop Creator API
create new item for this app with no content attached yet
public static SteamAPICall_t CreateItem(AppId_t nConsumerAppId, EWorkshopFileType eFileType) { InteropHelp.TestIfAvailableGameServer(); return (SteamAPICall_t)NativeMethods.ISteamGameServerUGC_CreateItem(nConsumerAppId, eFileType); }