Follow steps here to open your worlds sandbox_config.Space Engineers | Add Mods - Steam Workshop Print Installing Steam Workshop content to your server is easy! All you'll need to do is. How to: Add Mods To Your Space Engineers Server - GameserverKings.
+ Now you will be able to select your save.
Step 3: Find the mod(s) you wish to install and click Install, then restart your server and enjoy! How to add mods to your Space Engineers server
Step 2: Navigate to your Space Engineers server and click on the Steam Workshop icon.