To update the mods on a Space Engineers server, restart the server. The game updates every mod to the newest Workshop version each time it starts. There is no separate download step in the panel.
This matters when a mod’s author publishes a new version. Players’ games take the newer version. A player who has it cannot join until the server has it too.
Take an update
- Open the Mods page. The line under the title shows how many mods have a newer version on the Workshop. A mod with a newer version has an Update tag on its row.
- Restart the server with Restart at the top of the page. Players online are disconnected.
- Wait until the server is Running. The game fetched the newer versions as it started.

- Loaded at the last start (1)
The row’s line (1) says “Loaded at the last start.” for a mod the game loaded. The row also shows when the mod was last updated on the Workshop.
You can also use the row’s Update button, then Apply and restart. Applying stops the server, writes the world’s list, and starts it again, and the game updates the mods at that start. A server that was stopped stays stopped.
Why a player cannot join
The panel says: “The Workshop has a newer version. Players who already have it cannot join until the server has it too.” If a friend updated first, restart the server.
Mod updates are taken at a start. Schedule a restart if you want them taken often. See a daily restart schedule. A restart set on Schedules does not warn players first: they are disconnected when it runs.
If it does not work
- The row still says Update after a restart. Check the server really restarted, then reload the Mods page.
- The mod says it is not on the Workshop. Its author deleted it or made it private. The copy on the server keeps loading, but it cannot be updated. Take it off the list or find a replacement.
- A mod stopped working after its update. A mod that its author has not updated for this game version may fail. If its script did not compile, the row says so and links to the log. Read a mod’s script did not compile, then update it or take it off the list.
- A mod could not be downloaded. The Workshop may have refused it or it is private. The Crashes page names it.
More about the game: Space Engineers servers.
Sources: spaceengineers.wiki.gg: Mods