StarRupture server hosting for your co-op crew
Build your factory base on a hostile planet with up to three friends, on a server that stays online. Creepy Jar’s dedicated server is free and still experimental during Early Access, so it improves with every update.
- Official dedicated server from Creepy Jar
- Co-op for up to 4 players
- Server management from the game menu
- World pauses when everyone leaves
- Players
- Up to 4
- ServerA free Steam tool that is still marked experimental while the game is in Early Access.
- Experimental, Windows (Steam app 3809400)
- Management
- Server Management in the game menu
- When empty
- The world pauses
- Version
- Update 2 · hotfix 0.3.5 (October 2026)
- Early Access
- Since January 2026
Options
- 4-player co-op
- Server Management
- Autosave interval
- Pause when empty
Game facts from Creepy Jar’s announcements and patch notes, the Steam store and the Steam app data of the server, checked in October 2026.
- DDoS protection
- 20 game server locations
StarRupture plans are being prepared
Tell us how many of you play and how big your bases get, and our team will reply with the options. Or open a ticket and we will let you know when the plans are online.
How big should a StarRupture server be?
A server holds up to 4 players, so the size of your factory base decides the load. Creepy Jar has noted lower stability with 4 players in large bases.
Find your size
| Feature |
Duo
2 players
|
Recommended Full crew
Up to 4 players
|
Big factory
4 players with a large base
|
|---|---|---|---|
| Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore. | 8 GB | 10 GB | 12–16 GB |
| CPU coresFactories, creatures and progression are simulated on the server; fast cores help as the base grows. | 2–4 | 4 | 4–6 |
| Disk spaceThe installed server takes about 21 GB; leave room for saves and updates. | 30 GB | 30 GB | 40 GB |
| Typical use | Two friends starting out | A full crew of four | Late game with a sprawling factory |
-
Duo
2 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 8 GB
- CPU coresFactories, creatures and progression are simulated on the server; fast cores help as the base grows.
- 2–4
- Disk spaceThe installed server takes about 21 GB; leave room for saves and updates.
- 30 GB
- Typical use
- Two friends starting out
-
Recommended
Full crew
Up to 4 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 10 GB
- CPU coresFactories, creatures and progression are simulated on the server; fast cores help as the base grows.
- 4
- Disk spaceThe installed server takes about 21 GB; leave room for saves and updates.
- 30 GB
- Typical use
- A full crew of four
-
Big factory
4 players with a large base
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 12–16 GB
- CPU coresFactories, creatures and progression are simulated on the server; fast cores help as the base grows.
- 4–6
- Disk spaceThe installed server takes about 21 GB; leave room for saves and updates.
- 40 GB
- Typical use
- Late game with a sprawling factory
Creepy Jar publishes no server hardware figures; these starting points follow from the 21 GB server install and the 16 GB of RAM the studio recommends for the game itself.
Co-op, saves and server management
StarRupture’s dedicated server is managed from inside the game, and Creepy Jar keeps improving it with each update.
Four-player co-op
Play alone or in a group of up to four on one planet, with the base always there when you return.
Server Management
Players manage the session on a running dedicated server from the game’s Server Management option.
Pause when empty
Since hotfix 0.2.1 the game pauses when all players leave, so nothing happens to the base while you are away.
Autosave interval
Since Update 2, the autosave interval set by a player also applies on the dedicated server.
Experimental and improving
The server has received stability fixes in every update since launch; it is not available for the public test branch.
Set up your StarRupture server
Four steps to a base that is waiting for you.
-
Pick a size
Use the table above; plan more memory if your factory grows large.
-
Pick a location
Choose the one closest to your crew from our 20 game server locations.
-
Start your session
Create a new game or load a save, and set the autosave interval through Server Management.
-
Bring your crew
Up to three friends join the server from the game and continue where you left off.
Other game servers you might like
Satisfactory
Co-op factories with Steam and Epic crossplay and your own saves.
Foundry
A voxel factory that stays online, with Workshop mods.
Icarus
Open World, missions and outposts for up to 8 players.
Astroneer
Eight explorers instead of four, on a save that stays online.
Frequently asked questions
Does StarRupture have a dedicated server?
Yes. Since the Early Access launch in January 2026, Creepy Jar offers a free dedicated server on Steam (app 3809400). It is still marked experimental and runs on Windows.
How many players can join a StarRupture server?
Up to 4. StarRupture is played alone or in a group of up to four friends.
What does experimental mean for my server?
The dedicated server works, but Creepy Jar is still fixing issues, such as crashes when loading large saves, which were addressed in Update 2 and its hotfixes. Keep the server updated with the game.
How do I manage the server?
From the game: the Server Management option lets players manage the session on a running dedicated server, for example to load a save or change the autosave interval.
Does the world keep running when nobody is online?
No. Since hotfix 0.2.1 the game pauses when all players leave the session, so your base waits for you.
Can I play on the public test branch?
No. Creepy Jar does not provide a dedicated server for the public test branch, so the server always runs the main game version.
Does the StarRupture server run on Linux?
The dedicated server is a Windows build, so it runs on a Windows server.
Is StarRupture still in Early Access?
Yes. It launched in Early Access in January 2026, followed by Update 1 in April and Update 2 in September 2026, with hotfixes since.
Ready to build on a hostile planet?
Tell us your crew size and how big your base gets, and we will help you pick the right StarRupture server.