I believe you are looking for a Disc World,
Not sure if it will work with this version of Starmade though, You may have to load the version of Starmade that the sector export was made in in order for it to work but Idk I haven't tried it in a while so it may work
https://starmadedock.net/content/plain-discworld-sector-export-for-version-0-1882.2176/
Not sure if it will work with this version of Starmade though, You may have to load the version of Starmade that the sector export was made in in order for it to work but Idk I haven't tried it in a while so it may work
https://starmadedock.net/content/plain-discworld-sector-export-for-version-0-1882.2176/