Wurm Unlimited server hosting for your own sandbox world
Run your own Wurm world with the rules you choose: Adventure or Creative, PvE or PvP, faster skills and your own kingdoms. The official dedicated server comes with a management window and can link several servers into a cluster.
- Official dedicated server for Windows and Linux
- Adventure and Creative world templates
- Skill gain, action timers and PvP set by you
- Clusters of linked servers and community mods
- PlayersThe maxplayers launch option sets the limit; when it is set there, in-game commands cannot change it.
- Set with maxplayers
- Ports3724/TCP for game connections, 27016/UDP and up for the Steam server list and 8766 for Steam. Keep the RMI ports 7220–7221 private.
- 3724 TCP · 27016 UDP
- World templates
- Adventure · Creative
- Version
- 1.9; final content update in 2020
- Mods
- Ago’s mod loader (community)
- Server clusters
- Several servers linked by RMI
Options
- Adventure template
- Creative template
- PvE
- PvP
- Epic settings
- Server clusters
- Mods
Game facts from Wurmpedia’s server administration pages and the developer’s update notes, checked in October 2026.
- DDoS protection
- 20 game server locations
Wurm Unlimited plans are being prepared
Tell us your template, player count and whether you plan a cluster or mods, and our team will reply with the options. Or open a ticket and we will let you know when the plans are online.
How much RAM does a Wurm Unlimited server need?
Players, creatures and the size of what they build decide the load. A cluster needs resources for every server in it.
Find your size
| Feature |
Small group
Up to 10 players
|
Recommended Community
Up to 30 players
|
Large
Up to 100 players
|
Server cluster
Several linked servers
|
|---|---|---|---|---|
| Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore. | 3 GB | 4 GB | 6 GB | 4–6 GB per server |
| CPU coresThe game simulates the world mostly on one thread, so fast cores matter more than many cores. | 2 | 2 | 3–4 | 2–3 per server |
| Disk spaceRoom for the game files, the world and its backups, plus updates and mods. | 10 GB | 15 GB | 20 GB | 15 GB per server |
| CreaturesCreature counts, set in the server window, add simulation work; busy maps need more CPU. | Default | Default | Tuned to the map | Set per server |
| Typical use | Friends on a Creative map | A village community on Adventure | A public PvE or PvP server | Linked servers with travel between them |
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Small group
Up to 10 players
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 3 GB
- CPU coresThe game simulates the world mostly on one thread, so fast cores matter more than many cores.
- 2
- Disk spaceRoom for the game files, the world and its backups, plus updates and mods.
- 10 GB
- CreaturesCreature counts, set in the server window, add simulation work; busy maps need more CPU.
- Default
- Typical use
- Friends on a Creative map
-
Recommended
Community
Up to 30 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 game simulates the world mostly on one thread, so fast cores matter more than many cores.
- 2
- Disk spaceRoom for the game files, the world and its backups, plus updates and mods.
- 15 GB
- CreaturesCreature counts, set in the server window, add simulation work; busy maps need more CPU.
- Default
- Typical use
- A village community on Adventure
-
Large
Up to 100 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 game simulates the world mostly on one thread, so fast cores matter more than many cores.
- 3–4
- Disk spaceRoom for the game files, the world and its backups, plus updates and mods.
- 20 GB
- CreaturesCreature counts, set in the server window, add simulation work; busy maps need more CPU.
- Tuned to the map
- Typical use
- A public PvE or PvP server
-
Server cluster
Several linked servers
- Memory (RAM)Working memory for the world, the players and every mod. Leave headroom: memory use grows as players explore.
- 4–6 GB per server
- CPU coresThe game simulates the world mostly on one thread, so fast cores matter more than many cores.
- 2–3 per server
- Disk spaceRoom for the game files, the world and its backups, plus updates and mods.
- 15 GB per server
- CreaturesCreature counts, set in the server window, add simulation work; busy maps need more CPU.
- Set per server
- Typical use
- Linked servers with travel between them
The developer publishes no server hardware figures; these are conservative starting points for a Java game server. Large worlds, many creatures and mods need more.
Templates, settings, clusters and mods
Shape your Wurm world in the bundled Server Management window or with launch options.
Adventure or Creative
Adventure brings a prebuilt map with NPCs, a tutorial and PvP on by default; Creative starts on a blank map without villages or NPCs.
Server Management window
Set skill gain rates, action timers, PvP or PvE and creature counts in the bundled window, or pass options such as servername and maxplayers at launch.
Server clusters
Link several servers through a login server and RMI so players can travel between them; each extra server uses its own ports.
GM power levels
Give trusted players a power level from Hero to Implementor in the Players tab; the admin password unlocks in-game admin commands.
Community mods
Ago’s mod loader adds server mods shared on the official forum; players need client mods only when a mod changes the client.
Password and bans
Protect the server with serverpassword and ban players by Steam ID.
Set up your Wurm Unlimited server
Four steps to your own corner of Wurm.
-
Choose a template and size
Adventure or Creative, PvE or PvP: pick the memory for your community from the table above.
-
Pick a location
Choose the one closest to your players from our 20 game server locations.
-
Set your rules
Name the server, set the player limit, admin password and server password, and tune skill gain and timers.
-
Invite your players
Once the Steam query ports are open, players find the server in the in-game server list.
Other game servers you might like
Life is Feudal: Your Own
A medieval world for up to 64 players, kept in MariaDB.
Conan Exiles
Enhanced or Legacy, with Workshop mods and your own raid hours.
Valheim
Up to 10 Vikings with crossplay, modifiers and backups.
Rust
Your wipes, plugins and maps, from small groups to busy communities.
Frequently asked questions
Which ports does a Wurm Unlimited server need?
TCP 3724 for game connections, UDP 27016 and up for the Steam server list, and 8766 for Steam. Without the query ports the server only shows on the LAN tab. Keep the RMI ports 7220 and 7221 closed to the public.
How many players can join?
You set the limit with the maxplayers launch option; when it is set there, in-game commands cannot change it. Plan the memory for the players and creatures you expect.
Adventure or Creative: what is the difference?
Adventure starts on a prebuilt map with a tutorial, the Key of the Heavens quest and NPCs, with PvP on by default. Creative starts on a blank map without villages or NPCs, with random soul stones as spawn points.
Can I change skill gain and timers?
Yes. The Server Management window sets skill gain rates, action timers, PvP or PvE and creature counts. Epic settings speed up skill gain further and let missions affect Valrei.
How do I give myself admin rights?
Set an admin password with adminpwd to unlock in-game admin commands, and give trusted players a GM power level in the Players tab, from Hero up to Implementor.
Can I use mods?
Yes, through Ago’s community mod loader, which the 1.9.2.7 beta also added to the server and client. Put server mods into the mods folder; players need client mods only for mods that change the client. Mods are shared on the official forum.
Can I link several servers?
Yes. Servers can form a cluster with a login server and RMI connections, so players travel between them. Each extra server uses its own game, query and RMI ports.
Does Wurm Unlimited still get updates?
The 1.9.2.7 beta from January 2020 marked the end of official content updates. The game is still sold on Steam, and the developers still answer technical issues.
How do I keep strangers out?
Set serverpassword so only players with the password can join, and ban players by Steam ID. Maintenance mode lets in only staff with a power level above 0.
Does the server run on Linux?
Yes. Start WurmServerLauncher with start= and your world folder. The launcher is a graphical program, so a headless Linux server needs a virtual display such as Xvfb.
Ready to found your own kingdom?
Tell us your template, player count and plans, and we will help you pick the right Wurm Unlimited server.