Host a Space Engineers server for your friends
Space Engineers is on our roadmap, not in the launch catalog yet. Votes from the waitlist decide how fast it ships.
Ten-plus years of engineering-sandbox community, with a free official dedicated server and official docs from Keen. Big worlds with lots of grids are what push the RAM needs up.
Get early access for Space EngineersWhat you need
- RAM
- 8-16 GB
- Default server ports
- 27016
- Protocol
- UDP
- Server OS
- Windows
- Typical group
- 2-8 friends
You never forward any of these. The agent connects outward to our relay; the game's ports stay on your machine.
How hosting Space Engineers works
- 01
Install Multiplayer Rally
One Windows app. It installs and manages the Space Engineers dedicated server for you. No command line, no config files.
- 02
Pick Space Engineers
We set the ports, the settings, and the restart schedule. You pick the world name and who's allowed in.
- 03
Share your link
You get one address your friends paste into the game, and they're in. Nothing to install on their side, no port forwarding on yours.
Space Engineers hosting questions
Plan on 8-16 GB of free RAM for a friend-group server. Your PC needs that on top of whatever else it's running; the app checks before installing.
27016 (UDP). With Multiplayer Rally you don't forward any of them: the agent makes an outbound connection to our relay, and your friends connect to the relay address.
Yes. Each player needs their own copy of Space Engineers to join your server. We host the server side; the game itself comes from the store like always.
Space Engineers is on the roadmap behind the launch catalog. Joining the waitlist and naming it is a vote: demand decides the order we ship recipes.