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Godlike.Host offers hosted Vintage Story servers with its own game panel, SFTP access and free DDoS protection, if you would rather not host it yourself.
To let friends join a Vintage Story server from outside your home, forward the server port from your internet router to the computer running Vintage Story, then allow the same port through that computer’s firewall. The default port is 42420. The official multiplayer setup page says to forward both TCP and UDP; the dedicated-server guide uses TCP in its base example and says to repeat the rule for UDP from version 1.20 onward.
Port forwarding is not required for players on the same local network. It is needed only when an outside player must cross your router. The exact router screens vary by manufacturer, but the destination and port values are the same.
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A home network normally has two relevant addresses:
- Public address: the internet-facing address friends use to reach your home connection.
- Local address: the private IP address assigned to the computer running the Vintage Story server, such as an address in your home LAN.
The router receives an outside connection on port 42420 and must send it to the server computer’s local address. Forwarding to the router itself, or to another computer, will not reach the game server.
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| Setting | Default value | Qualification |
|---|---|---|
| Game server port | 42420 | Use the port shown in your server configuration if you changed it. |
| Destination | Computer running the server | Enter that computer’s current local-network IP address. |
| Protocol | TCP and UDP | The multiplayer page specifies both. The dedicated-server guide adds UDP for version 1.20 onward. |
| External and internal port | 42420 to 42420 | Most routers use the same number on both sides for this setup. |
The Vintage Story Wiki multiplayer setup page was last verified for version 1.20.0. If your installed version presents different networking options, check the documentation for that version before changing protocol or port settings.
LAN play versus internet play
When no forwarding is needed
If every player is connected to the same home router, use the game’s LAN option. Those connections stay inside the local network, so the router does not need an internet-facing forwarding rule.
When forwarding is needed
Friends connecting from another house, office, or mobile network are outside your LAN. Their traffic first reaches your public address, then the router needs a rule that sends port 42420 to the host computer. A local player being able to join does not prove that external forwarding works.
Before you create the rule
Start the server and confirm its listening port
Launch the dedicated server, or open the world you intend to share, before testing the router. For a dedicated server, the official guide describes a startup-console message showing that the server is running on port 42420 and listening on all IP addresses as a useful readiness check. If the server is not listening, a router rule cannot make it reachable.
If you have changed the server’s port, record that value first. Every later step—the router’s external and internal fields, firewall allowances, and the port shared with friends—must use the configured value instead of 42420. Mixing the default number with a custom one is an easy way to create a rule that looks correct but points at nothing.
Identify the host computer’s local IP address
Find the current LAN address of the computer running Vintage Story. You can usually see it in the operating system’s network information or in the router’s connected-device or DHCP list. Write down the complete address, including every number, because this is the destination in the forwarding rule.
Reserve the address when possible
A router may assign a different local address after a reboot or lease renewal. If your router supports a DHCP reservation, reserve the host computer’s address in the router’s LAN or DHCP settings. This keeps the forwarding rule pointed at the same machine. The official guide establishes that traffic must be directed to the server’s location on the network, but reservation screens differ by router.
Check whether another service already uses the port
Only one device can normally receive a given forwarded port on a router. If an existing rule already uses 42420, edit it only if it belongs to this server, or choose a different external port and map it to the server’s configured internal port according to your router and game settings. Do not assume that a second rule with the same destination will resolve a conflict; remove obsolete entries and keep a single, clearly named rule for the active server.
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Manual port forwarding: step by step
- Open the router’s administration interface. Use the router’s documented management address and sign in with an administrator account. Look for a section named Port Forwarding, Virtual Server, NAT, or a similar term. The exact label depends on the make and model.
- Create a new forwarding entry. Give it a descriptive name such as
Vintage Storyso you can identify it later. - Set the external/WAN port to 42420. If the server configuration uses a different port, substitute that configured value.
- Set the internal/LAN port to 42420. In the normal default setup, the internal and external numbers match.
- Enter the host computer’s local IP address. This is the address you identified earlier, not the router’s address and not the public address shown by an internet speed-test site.
- Select TCP. Save or apply the rule.
- Add UDP as well. The multiplayer setup page calls for TCP and UDP. The dedicated-server guide specifically says to repeat the forwarding process for UDP for version 1.20 and later. If your router has a combined TCP/UDP choice, use it; if it requires separate entries, create one TCP rule and one UDP rule with the same port and destination.
- Confirm that the rule is enabled. Some interfaces require a second Apply, Enable, or Activate action after saving.
Router interfaces are not standardized. Use the maker’s instructions for your model to locate the fields, then map them to the values above. Avoid copying a click-by-click path written for a different router, because labels and validation rules can differ even between firmware versions from the same manufacturer.
Understanding the router fields
External, public, or WAN port is where an outside connection arrives. Internal, private, or LAN port is where the server listens on the host computer. Server IP, destination IP, or device is the host’s local address. A router may also ask for a source address, schedule, or interface; leave optional restrictions at their defaults unless your network administrator has a specific reason to limit them. The essential mapping is one outside port to one server computer.
Allow the port through the host firewall
Port forwarding changes the router’s behavior; it does not automatically create an allow rule on the server computer. Permit Vintage Story’s server traffic on the same port and protocols.
Windows
When Windows Firewall asks whether to allow the server, grant the required access on the network profile you actually use. If no prompt appears, create an inbound rule for the Vintage Story server application or for port 42420, allowing TCP and UDP as required by your game version. Keep the firewall enabled; do not solve a forwarding problem by disabling it for the whole computer.
Linux
The official Linux dedicated-server guide gives examples for firewalld, iptables, and ufw. Whichever firewall system is active on your distribution, add an inbound allowance for port 42420 over TCP and UDP, then reload or apply the firewall configuration. Do not configure all three systems unless you know they are active; first determine which firewall manager is controlling the host. If you use a non-default server port, substitute that port in each rule.
Other operating systems
Use the platform’s inbound-firewall controls to allow the server process or the configured port. The important relationship is that the host firewall’s port and protocol must match the router’s forwarding entry.
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Vintage Story can ask a UPnP-enabled router to create the mapping automatically. For an ad-hoc world, the official multiplayer setup describes choosing Open to LAN and then Open to Internet. For a dedicated server, the configuration command /serverconfig upnp [0|1] controls whether the server requests UPnP forwarding.
| Approach | What it requires | Typical failure point |
|---|---|---|
| UPnP | UPnP enabled and permitted on the router | The router refuses or mishandles the automatic mapping. |
| Manual forwarding | Router rule, stable host IP, and host-firewall allowance | A wrong destination address, port, protocol, or firewall rule. |
The wiki estimates an “about a 60% success chance” that Open to Internet works instantly without issues. That is the wiki’s estimate, not a controlled measurement or a guarantee for your router or ISP. If UPnP fails, turn to an explicit manual rule and verify that UPnP is enabled if you still want to use automatic mapping.
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Give friends the correct connection details
Once the server is running and the rule is active, provide friends with your public internet address and the server port, or use the address format required by Vintage Story’s server browser or direct-connection screen. The public address is different from the host computer’s private LAN address.
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If you selected a custom external port, include that number explicitly. Friends should not be given the router’s administration address or the local address that works only inside your home. If your public address changes periodically, you will need to tell players the new address; the official setup pages support connection by IP or domain, but do not promise a particular dynamic-DNS service.
Test from a genuinely external network, such as a friend’s connection or a phone using mobile data. A test made from inside the same LAN may be handled by the router’s loopback behavior and can give a misleading result. If outside players connect, the basic path through the router and host firewall is working.
Troubleshoot in the order traffic travels
LAN players connect, but outside players cannot
- Confirm the server is actually listening on the configured port.
- Check that the forwarding destination is the host computer’s current local IP address.
- Verify both the external and internal port values.
- Check whether your installed version requires both TCP and UDP, and ensure the corresponding rules exist.
- Review the host firewall for an allow rule covering the server and the required protocols.
The router reports an enabled rule, but nobody can connect externally
Start with the server’s console or status output. The dedicated-server guide’s readiness indication is a message that the server is running on port 42420 and all IPs. If the server is listening, compare the computer’s current local address with the address stored in the router rule; a changed DHCP assignment is a common cause.
UPnP does not work
Check that UPnP is enabled on the router and that the router allows the Vintage Story process to create mappings. If the automatic request still fails, leave UPnP aside and create the TCP and UDP forwarding entries manually, with the host firewall allowances described above.
There is a modem and a separate router
Multiple routing devices can mean that the public connection terminates on a different gateway from the one where you created the rule. The official material does not establish one universal fix for every modem/router combination. Identify which device receives the public address and configure the device that must pass traffic toward the server; your equipment manuals or ISP support may be needed for the exact topology.
Your connection uses carrier-grade NAT or has no public IPv4 address
A forwarding rule cannot by itself overcome an upstream network that does not give your router a reachable public address. The official pages do not provide a diagnostic procedure for every ISP or confirm that all providers permit inbound connections. Ask your ISP whether your service uses carrier-grade NAT or blocks inbound traffic before spending time recreating local rules.
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The version appears to need a different protocol
The multiplayer setup page says to forward TCP and UDP, while the dedicated-server guide presents TCP as its base example and calls for UDP from version 1.20 onward. Keep the version context attached to your configuration. If behavior differs, consult the documentation for the exact Vintage Story version installed on the server rather than assuming that a rule from another release applies unchanged.
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If a diagnostic or player report suggests TCP works but UDP does not, inspect the router for separate protocol entries and check that the host firewall allows both. Some interfaces label a combined choice as “Both,” “TCP/UDP,” or “Any.” Do not create a second rule pointing at a different computer while testing; first keep the destination and port identical and vary only the protocol setting.
Security and maintenance
An internet-facing server port can be discovered by automated scans and may receive brute-force attempts. The official dedicated-server guide characterizes this exposure as a minor risk, not as zero risk. Reduce unnecessary exposure by forwarding only the game port you need, keeping Vintage Story and the operating system updated, and using the game’s access controls appropriately.
When you stop hosting for an extended period, disable or remove the forwarding entries if you do not need the server reachable. If you change the server port, update the router rules, host-firewall rules, and the port you give to friends together; changing only one of those locations will break the connection.
Keep a note of the router rule name, destination address, protocol selections, and server configuration. That record makes recovery faster after a router replacement or factory reset. Review old entries periodically and remove mappings for machines or ports you no longer use.
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The official self-hosting information recognizes paid Vintage Story server hosting as an alternative. A hosted server moves router forwarding and much of the home-network maintenance to a provider, but service features, prices, geographic availability, and support quality vary. Evaluate those details directly with any provider before committing. It is an option, not a requirement for playing with friends.
Hosting elsewhere does not remove the need to configure the game itself: you still need the correct Vintage Story version, world files, access controls, and server settings. The trade-off is that the provider supplies an internet-reachable machine, so your home router and ISP no longer have to accept inbound game traffic.
Quick verification checklist
- The server is running and listening on the intended port.
- The host computer has a known local IP address, preferably reserved in DHCP.
- The router forwards external port 42420 to that local address on the internal port.
- TCP and UDP are configured as required for the installed Vintage Story version.
- The host firewall allows the server application or the required port and protocols.
- Friends use the public address and test from outside your home LAN.
- If it still fails, you have checked for multiple routers and carrier-grade NAT rather than assuming another local rule will fix an upstream limitation.
Frequently Asked Questions
What port does a Vintage Story server use?
The default game-server port is 42420. If you changed the server configuration, forward the configured port instead and use that same value in the firewall and connection details.
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Do I need TCP, UDP, or both?
The Vintage Story multiplayer setup page says to forward TCP and UDP. The dedicated-server guide uses TCP in its base example and says to repeat the rule for UDP from version 1.20 onward. If your installed version behaves differently, follow that version’s documentation.
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Do LAN players need port forwarding?
No. Players on the same home network can use LAN play without opening an internet-facing router rule. Forwarding is for friends connecting from outside your network.
Why can I join locally but my friends cannot?
Local access proves that the server is running, not that the router path works. Check the forwarding destination, current host IP, external and internal ports, TCP/UDP entries, and the host firewall. Test from a genuinely external network.
Is UPnP required?
No. UPnP is an optional automatic method. It works only when the router supports and permits it. If Open to Internet or the dedicated-server UPnP request fails, create manual TCP and UDP forwarding rules.
What does the wiki’s 60% figure mean?
The Vintage Story Wiki estimates about a 60% chance that Open to Internet works instantly without issues. It is a wiki estimate, not a controlled study or a guarantee for a particular router, ISP, or network.
Should I disable my firewall while testing?
No. Add a narrowly scoped inbound allowance for the Vintage Story server or its configured port and required protocols. Disabling the entire firewall creates unnecessary exposure and does not fix an incorrect router destination.
What if I have a modem and a separate router?
The device that receives the public connection may not be the device where you added the rule. Identify the gateway handling the public address and consult the equipment manuals or ISP for the exact topology; there is no single fix for every arrangement.
Can port forwarding bypass carrier-grade NAT?
No. If your ISP does not give your router a reachable public IPv4 address, a local forwarding rule cannot overcome that upstream limitation. Ask the ISP whether carrier-grade NAT or inbound filtering is in use.
The Bottom Line
For a normal Vintage Story setup, forward port 42420 from the router to the server computer’s reserved local IP, allow the matching TCP and UDP traffic through the host firewall, and test from outside your LAN. Use UPnP only as a convenience; manual forwarding is the dependable fallback. If the server still cannot be reached, investigate the current host IP, multiple routers, and ISP-level limitations before changing more local rules.
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