Since most of the physics is calculated on the server side, it's better to have a CPU with a high clock rate. Intel i7-i9 (8-10th generations) or AMD Ryzen 5-9 (2-3 generations) will be better here. For Xeon's would be good if the clock rate was over 3.5 GHz. Roughly speaking, each server instance will take 2-3 threads, so you can run multiple servers on dedicated machines with the mentioned CPUs.

Of course, it all depends on the number of servers you plan to create and how loaded they will be. For example, I'm running two simple servers (Climb and Battlebots) that can run even on systems with just two cores and clock speed of about 2Ghz. On the other hand, there can be servers that use much more complex vehicles and missions for their game modes. And there is no guarantee that the server will not start slowing down the simulation even if it has a top-notch CPU.

There are only two things that you shouldn't really care about: the GPU and RAM. I don't think you will ever need more than 4 GB per single server (unless you are using mods).

A lot of data is required to be sent and received. The more players online, the more traffic there will be. There are no exact numbers because it all depends on the world scene (the number of objects, vehicles and their logic that needs to be synced) but roughly, I would say you need to expect 50-300Kb/s per player.

Only Windows systems are supported for now. Confirmed to work on Window 7, Windows 10, Windows Server 2016 and 2019. It should work with no issues on Windows 8 and 8.1 as well.

Minimum:
CPU: 2 GHz
RAM: 4 GB free RAM
Bandwidth: 10 Mbps

Recommended:
CPU: 4-5 GHz
RAM: 4 GB free RAM
Bandwidth: 20 Mbps + static IP address for a public server

Dedicated Server executables are located right in the game folder.

Run server.exe or server64.exe from the game folder at least once to create a server_config.xml file in %appdata%\Stormworks directory.

Close the server app and edit that file using any text editor:
Please, keep the XML syntax right.

Server settings are not dependent on the world save and are applied every time you launch your server:

Remember that you cannot edit server config when the server is running.

This section is used for giving admin permissions to the clients based on their Steam64 ID. To find Steam ID you can use websites like https://steamid.xyz/ or https://steamidfinder.com/
Example:

Blacklist is basically a ban list. A new entry is created when ?ban command is used on the server. You can manually edit it as well to unban players or sync with other ban lists, for example.

Whitelist also fills in the same way, but note that the server will be automatically switched into whitelist mode if there is at least one entry. In that mode, only players from that list will be able to connect to the server.

A list of players that are allowed to interact with the workbench. By default, only admins and whitelisted players are allowed to spawn, despawn and return vehicles, so if you want other players to have that permission as well, then you should add them to that list or use ?auth command.

Here we put all addons (missions playlists and environment mods) that we want to be on the server.
Example for enabling all default addons:

If you want to create a game with mods enabled then you need to list them like that:

If you want your server config file to be in a more comfortable folder (let's say, in the same folder where you have your server files, like absolutely most dedicated servers do) then you can use +server_dir launch parameter to set the path you need.

For example, a server launched with these parameters will look for config and world saves in C:\swds:
Or it will create them with default settings if these files and folders are missing:
But if you want to run multiple servers, you will need to use aseparate path for each one. This is how batch script look for my Mad Max server, for example:
This will use server_config.xml from the mad_max folder and automatically update and restart the server on process termination (or simply on a server crash).

Besides the server settings, we can also configure some initial world parameters when we're creating a new save. Note that a new game is only created when world save is not found or when that field is empty in the server config.

World parameters are only used when you start a new game (i.e. save_name is empty), which means that changing these settings in the server config file will not change already saved games.

These parameters are only set on world creation and cannot be changed after (without editing world save scene.xml):

These parameters are set on world creation too, but can be changed using a Custom menu anytime:

List of bases to use for base_island in server config:

All commands work in the chat only. You can see the session peer ID of player in players menu:

To make your server be visible to other players, you need to have a public IP and set your firewall to allow connections for the server executable (Stormworks Dedicated Server). Here is how it looks for the default Windows Firewall:

If you install Stormworks Dedicated Server as a tool using a Steam client, then Steam will add that rule automatically for the default Windows Firewall. For all other security software, you will need to add it manually.

If you are running a server on the machine that is behind the NAT (a Wi-Fi router in most cases) then you will also need to forward all three game ports. There are thousands of different router models that go with different hardware and firmware versions, so I can't show you how to forward these ports, but you can use https://portforward.com/ website for that.

Here is how it may look on popular D-Link routers with "orange" firmware:
If you run more than one server from your network, you need to use a different port range for each.

But be aware, that if you run server and client from the same network or even from the same computer then to see your own server you will need to enable NAT Loopback or install Microsoft Loopback adapter for example.

This is a workaround for those who run a dedicated server on the same computer/network as the game client. Please, use it only if other players can already see and join your server, but you can't.

• Open Control Panel > Device Manager and select Network Adapters
  
• Select menu Action > Add legacy hardware
  
• Next
  
• Select Install the hardware that I manually select from a list (Advanced)
  
• Next
  
• Select Network Adapters in the list
  
• Next
  
• Select Microsoft in Manufacturer list
  
• Select Microsoft KM-TEST Loopback Adapter in Model list
  
• Next > Next > Finish
  
• Close Device Manager window
  
• Open Control Panel > Network and Internet > Network Connections
  
• You should see a new connection that uses Microsoft Loopback Adapter but cannot establish connection
  
• Right click on that connection and select Properties
  
• Double click Internet Protocol Version 4 (TCP/IPv4)
  
• Select Use the following IP address
  
• NOTE: If it was already selected and you see some IPs entered then you opened a wrong connection. Get out of here by clicking Canel in both windows.
  
• Enter in IP address field your external IP address (you can see it here for example https://www.myip.com/)
  
• You can leave default Subnet mask
  
• Click OK buttons in opened windows to save settings

If you did all right, you should be able to see your own server when that connection is enabled.
If you lost your Internet connection, then you probably changed IPv4 parameters of your actual Internet connection.

Make sure that Visual C++ Redistributable 2013[www.microsoft.com] is installed.
It's usually means that server config file is corrupted or have a syntax error.
It could be server config error or something wrong with the missions or environment mods. Try to start a server with the default config.
Make sure that server ports are forwarded on your router and that your firewall is not blocking server executable. Check server in the Steam server browser [url]steam://open/servers[/url] or ask your friends to check server visibility. It could be that it's just because of NAT.
There is no support for non-latic characters so you better to avoid them in server naming.