ok let me get this right. u need to 1.install mono on the nas 2.download TShock 4.3.13 for Terraria 22.214.171.124 (API v1.22) zip file 3.buy Terraria from Steam (do i need to start steam to play terraria ?) Where do I put the ZIP file ??? then follow your instructions "Download WinSCP (https://winscp.net/eng/docs/lang:de) 2. Login as "root" with admin pass 3. Normally the file sits in "/volume1/@appstore/Mono/usr/lib/libMonoPosixHelper.so" 4. Copy the file to "/usr/lib/libMonoPosixHelper.so" 5. Restart Mono 6. Restart the Terraria Server with 'screen mono Terrariaserver.exe' 7. Enjoy a working server" This is correct ?