If you are not interested in building this from source, skip ahead to Installation. A GUI may be considered in the future, however at this time it is not planned. Please note, this is a command-line application only. It takes various command-line options, which can be displayed by running SEWorkshopTool.exe without arguments. This tools allows you to script mod uploads to the workshop. It is also known as SEWT (for Space Engineers Workshop Tool), or MEWT (Medieval Engineers Workshop Tool). This is a tool which allows batch upload and download of mods for both Space Engineers and Medieval Engineers.