Avorion server hosting for your fleet
Build ships block by block and push to the galaxy’s core with friends, on a galaxy that keeps running. The official Avorion server runs your galaxy with your rules, Workshop mods and admins, on Windows or Linux.
- Official Avorion dedicated server, Windows and Linux
- Your galaxy name, seed and difficulty
- Workshop mods downloaded and updated by the server
- Admins, whitelist or blacklist and RCON
- PlayersSet maxPlayers in server.ini or --max-players on the command line.
- 10 by default (maxPlayers)
- PortsThe official wiki lists these ports for internet play; RCON uses 27015 when you set an RCON password.
- 27000 UDP/TCP · 27003 · 27020 · 27021 UDP
- Config
- server.ini in the galaxy folder
- Mods
- Steam Workshop via modconfig.lua
- Server
- Steam app 565060, anonymous download
- Difficulty
- -3 to 3, hardcore from 2
Options
- Galaxy seed
- Difficulty
- Infinite resources
- PvP
- Workshop mods
- RCON
- Beta branch
Game facts from the official Avorion wiki’s server pages and the Avorion Steam store page, checked in October 2026.
- DDoS protection
- 20 game server locations
Avorion plans are being prepared
Tell us your fleet size and the mods you use, 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 an Avorion server be?
Avorion uses several threads: worker threads run the sectors, generator threads build new ones as players explore. More players exploring means more cores.
Find your size
| Feature |
Small fleet
Up to 5 players
|
Recommended Default server
Up to 10 players
|
Large galaxy
Up to 20 players
|
|---|---|---|---|
| Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore. | 4 GB | 6 GB | 8–12 GB |
| CPU coresThe wiki recommends as many worker threads as the CPU can run at once, and at least two generator threads. | 2–4 | 4–6 | 6–8 |
| Disk spaceThe server is small; the galaxy grows with every explored sector, plus mods and backups. | 10 GB | 15 GB | 25 GB |
| Generator threadsThreads that create or load sectors while players plot hyperspace jumps. The wiki suggests 2–4 for 5–15 players on an 8-thread CPU. | 2 | 2–4 | 4–8 |
| Typical use | Friends sharing a galaxy | The default ten-player server | A busy galaxy with alliances and mods |
-
Small fleet
Up to 5 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 4 GB
- CPU coresThe wiki recommends as many worker threads as the CPU can run at once, and at least two generator threads.
- 2–4
- Disk spaceThe server is small; the galaxy grows with every explored sector, plus mods and backups.
- 10 GB
- Generator threadsThreads that create or load sectors while players plot hyperspace jumps. The wiki suggests 2–4 for 5–15 players on an 8-thread CPU.
- 2
- Typical use
- Friends sharing a galaxy
-
Recommended
Default server
Up to 10 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 6 GB
- CPU coresThe wiki recommends as many worker threads as the CPU can run at once, and at least two generator threads.
- 4–6
- Disk spaceThe server is small; the galaxy grows with every explored sector, plus mods and backups.
- 15 GB
- Generator threadsThreads that create or load sectors while players plot hyperspace jumps. The wiki suggests 2–4 for 5–15 players on an 8-thread CPU.
- 2–4
- Typical use
- The default ten-player server
-
Large galaxy
Up to 20 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 8–12 GB
- CPU coresThe wiki recommends as many worker threads as the CPU can run at once, and at least two generator threads.
- 6–8
- Disk spaceThe server is small; the galaxy grows with every explored sector, plus mods and backups.
- 25 GB
- Generator threadsThreads that create or load sectors while players plot hyperspace jumps. The wiki suggests 2–4 for 5–15 players on an 8-thread CPU.
- 4–8
- Typical use
- A busy galaxy with alliances and mods
Based on the official wiki’s multithreading examples for 5–20 players. Boxelware publishes no memory figures; large galaxies and mods need more.
Galaxy settings, mods and admins
Everything about your galaxy lives in its own folder: settings, sectors, players and mods.
server.ini
Seed, difficulty, hardcore, infinite resources, player-to-player damage, ship and station limits, save interval and more, per galaxy.
Workshop mods
List Workshop IDs in modconfig.lua: the server downloads and updates them at every start and tells players which mods to get.
Admins
Pass your 64-bit Steam ID with --admin when the galaxy is created, so you can manage the server in game.
Access lists
Set accessListMode to blacklist or whitelist, add a password and decide whether the server is listed publicly.
RCON
Set rconPassword to manage the server remotely; RCON listens on port 27015 by default.
Default or beta
Run the default or the beta branch. Going back from beta to default will most likely corrupt the galaxy, so back up first.
Set up your Avorion server
Four steps from a new galaxy to your fleet in space.
-
Pick a size
Count the players who explore at the same time and choose cores and memory from the table above.
-
Pick a location
Choose the one closest to your fleet from our 20 game server locations.
-
Create your galaxy
Start the server once with your galaxy name and Steam ID as admin, then set seed, difficulty and rules in server.ini.
-
Launch together
Join from Avorion’s server list or by address, and stop the server with /save and /stop when needed.
Other game servers you might like
Empyrion - Galactic Survival
A galaxy for your crew, with Workshop scenarios and playfields.
Learn moreFrequently asked questions
How many players can join an Avorion server?
10 by default. Change maxPlayers in the galaxy’s server.ini or start the server with --max-players. More players exploring at once need more CPU threads.
Which ports does Avorion use?
The official wiki lists 27000 over UDP and TCP, plus 27003, 27020 and 27021 over UDP. RCON, if you enable it, listens on 27015.
Where are the galaxy settings?
In server.ini inside the galaxy folder, created when the galaxy starts for the first time. Edit it only while the server is stopped; the server overwrites it on shutdown, and a broken file is replaced with defaults and a new seed.
How do I use Workshop mods?
Create modconfig.lua in the galaxy folder and list the mods by workshopid. The server downloads and updates Workshop mods at every start and tells players which ones to download. Achievements are disabled when mods are used.
How do I make myself an admin?
Start the server with --admin and your 64-bit Steam ID when you create the galaxy. Admins can, for example, save and stop the server with /save and /stop in game.
How do I stop the server safely?
Always run /save and then /stop. Closing the console without saving can damage the galaxy.
Can I make a private server?
Yes. Set a password, switch accessListMode to whitelist and keep isListed off so the server stays out of public lists.
Which difficulty settings are there?
Difficulty goes from -3 to 3, and from 2 upwards hardcore is on, so destroyed ships cannot be rebuilt at a repair dock. You can also turn on infinite resources or change collision damage.
Does the server run on Linux?
Yes. The Avorion dedicated server (Steam app 565060) downloads anonymously with SteamCMD for Windows and Linux.
Ready to launch your fleet?
Tell us your players and mods, and we will help you pick the right Avorion server.