The Tool Desk
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Choose the right way to connect
Hytale offers three practical connection paths. Choose before changing router settings or renting hardware.
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| Option | Best for | Setup burden | When it is available | Main trade-off |
|---|---|---|---|---|
| Friend share code | A few friends joining an existing single-player world | Low | Only while the host is playing and the world is shared | The host’s network and game session determine availability |
| Tailscale fallback | CGNAT, double NAT, or blocked direct connections | Medium | Both players must install and sign in to the app | An overlay or relay path can add latency |
| Rented dedicated server | A persistent community world, larger groups, or owner-offline uptime | Low to medium | Depends on the hosting provider and plan | Recurring cost and provider terms |
| Self-hosted dedicated server | Technical owners who need control and customization | High | Depends on your hardware, power, and internet connection | You manage Java, authentication, updates, firewall rules, and ports |
For the ordinary “join my friend” situation, start with the share-code method. It is the path designed to open a single-player world without operating a separate server.
Join a friend’s Hytale world with a share code
What the host must do
- Add the guest as a Hytale friend. Friend status should be established before the code is created. It enables additional connection methods, including relay fallback when a direct route is unavailable.
- Load the single-player world. The world must be open in the host’s active game session.
- Press ESC to open the pause menu.
- Select Online Play.
- Turn on Allow Other Players to Join.
- Optionally set a password. Hytale lets the host choose whether that password is included in the share code.
- Click Save.
- When Hytale displays the share code, click Copy to Clipboard and send it directly to the intended player.
What the guest must do
- Return to the main menu and open Servers.
- Select Join via Code.
- Paste the host’s share code into the field.
- Enter the password if the host did not embed it in the code.
- Click Connect.
Hytale chooses a connection route automatically. It prefers a direct path and can use a relay when the two networks cannot establish a direct route. Most home networks need no router changes for a normal share-code join.
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Keep share codes private
A share code contains the host’s IP address, so it is network information rather than an ordinary invitation token. Send it only to trusted players. Do not post it in a public chat, put it on a public forum, or display it on a stream. A stranger who obtains the code may learn the address and attempt to connect while the world is available.
Codes expire. If an old code stops working, the host should return to ESC > Online Play, save the settings again, and send a newly generated code. Regenerating the code is also a sensible response if it was accidentally shared with the wrong person.
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Troubleshoot a failed share-code connection
Work from the in-game diagnostics outward. Changing several router settings at once makes it difficult to identify the actual cause.
1. Confirm the game-side prerequisites
- Both players are Hytale friends, not merely people who have exchanged a code.
- The host is still in the intended world and has Allow Other Players to Join enabled.
- The host clicked Save after changing Online Play settings.
- The guest is using Servers > Join via Code, not a different server-entry screen.
- The host generated a fresh code and sent it privately.
2. Copy the Network Report
On the host’s Online Play screen, use Copy Network Report. The report identifies the connection status and often points to a firewall, NAT, or reachability problem. Treat the report as diagnostic information and avoid posting it publicly if it includes addresses or other network details.
3. Check local firewall permissions
On Windows, allow Hytale through Windows Firewall on both Private and Public networks. A rule that covers only a home network can fail when Windows classifies the current connection differently. After changing the rule, save Online Play settings again and create a new code.
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4. Test whether the network is the cause
Try the host or guest connection from a phone hotspot. If the join works over the hotspot but not the normal connection, the original router, ISP, school network, office network, or public Wi-Fi is likely filtering the traffic. School and office administrators may intentionally block game traffic; do not bypass an organizational policy without permission.
5. Understand the NAT situation
- Double NAT: Two routers are translating the connection. If port forwarding is appropriate for your setup, it must be configured on both devices, or the provider-supplied box can be placed in bridge or modem mode so only one router performs NAT.
- Carrier-grade NAT (CGNAT): The ISP shares one public address among several customers. Conventional port forwarding cannot correct this. Ask the ISP for a public address, or use Tailscale as the alternate path.
- Symmetric NAT: The router can prevent a direct peer route and force Hytale to use a relay. The join may still succeed, but latency can be higher.
- ISP or managed-network filtering: A provider, school, office, or public hotspot may block the traffic even when both computers are configured correctly.
6. Try the other player as host
If one player’s network cannot accept a direct route, have the other friend load the world and create the share code. Hosting is not tied permanently to one account, and switching hosts is often faster than attempting to reconfigure a restricted connection.
Use Tailscale when direct joining cannot work
Tailscale is the documented fallback when Hytale’s normal direct and relay paths are blocked by CGNAT, double NAT, or restrictive firewall rules. It creates a private connection between the participating computers.
- Both players install Tailscale and sign in.
- Confirm that each computer appears as available to the other in Tailscale.
- The host opens the Hytale world, goes to ESC > Online Play, and saves the sharing settings again.
- The host generates a new share code and sends it privately.
- The guest uses Servers > Join via Code and connects with the new code.
Tailscale is a backup path, not a guarantee of lower ping. The additional overlay or relay route may be slower than Hytale’s direct route. If the connection works but feels delayed, compare it with a normal home-network attempt or let the other player host.
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A dedicated server runs the world separately from the game client. That makes it appropriate when the owner must be offline while others play, when a group is larger than a small circle of friends, or when the world needs persistent uptime and additional configuration. The server does not also render the owner’s game, which can improve the host’s local performance.
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How dedicated-server cost and responsibility differ
A rented server has an ongoing hosting charge rather than a one-time purchase. The amount depends on the provider, region, memory allocation, player capacity, storage, backup options, and billing term. Compare the current plans from Launch Verified providers instead of assuming that the cheapest tier supports your group. Check whether taxes, setup fees, automatic renewal, backups, DDoS protection, mod support, and cancellation rules are included.
Self-hosting avoids a hosting invoice but is not free in practice. You supply the computer, electricity, storage, internet service, maintenance time, and any upgrade needed for additional players. You are also responsible for keeping Java and the server files current, protecting authentication data, monitoring uptime, and restoring backups. A small group that only plays together occasionally will usually spend less effort with share codes; a community that expects the world to be online every day may value the predictable availability of a rented instance.
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Join an existing dedicated server
The server owner must give you the server’s current address and port. In the Hytale client, open the server interface from the main menu and enter those connection details in the server entry supplied by the owner. A share code is not the same thing as a dedicated-server address: the former is generated from a player’s Online Play screen, while the latter remains the endpoint of a separately running server.
Ask the owner which port is in use if the server does not use the default. An address without the correct port can look valid but still fail to connect. If the owner recently changed providers, network equipment, or the server bind port, request the current endpoint rather than reusing an old entry.
Do not assume that a server listed as online is reachable from every network. A school or office firewall can block UDP traffic, and a server may be restarting for an update. Confirm the exact spelling of the address, the UDP port, and whether a password or whitelist is required. If only one player cannot connect while others can, troubleshoot that player’s firewall or network before asking the owner to rebuild the server.
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Hardware and software requirements
The official Hytale Server Manual lists support for x64 and arm64 devices, at least 4 GB of memory, and Java 25. These are baseline requirements, not a promise that every world or player count will perform well at exactly 4 GB. Larger worlds, more simultaneous players, and additional server content can require more headroom.
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The server must be authenticated. The manual also documents a device-authentication authorization window of 900 seconds; complete the authorization flow within that window when prompted rather than leaving it until later.
Network behavior and port forwarding
Hytale uses QUIC over UDP. The default server bind is 0.0.0.0:5520, so a typical router-hosted installation forwards UDP port 5520 to the computer running the server. TCP forwarding is not required for this protocol. If you choose another port with the --bind option, forward that UDP port instead and give players the matching address and port.
0.0.0.0 means the server listens on the machine’s available network interfaces; it is not the public address players type into the client. Players outside the home network need the host’s current reachable address and the selected UDP port. The server computer’s local firewall must also permit the server process and UDP traffic on that port.
Practical self-hosting sequence
- Use a supported x64 or arm64 machine with at least 4 GB of memory.
- Install Java 25 and verify that the server process can use it.
- Install the Hytale dedicated-server files from the official distribution and complete authentication.
- Start the server with the default bind, or select a custom bind with
--bind. - Permit the server through the machine’s firewall.
- Forward the matching UDP port on the router. With the default bind, that is UDP 5520.
- Check the server log for a successful start and confirm that the listening port matches the value given to players.
- Test from a different network, such as a phone hotspot, rather than relying only on a test from inside the same LAN.
- Give trusted players the current address and port, and keep administrative credentials private.
If the router is behind another router, this sequence encounters double NAT and forwarding may need to be configured on both devices. If the ISP uses CGNAT, inbound forwarding generally cannot expose the server; request a public address or use an overlay solution instead.
Common mistakes that prevent a join
- Using an old code: Share codes expire and can stop working after network or Online Play changes. Generate a new one rather than repeatedly pasting the old value.
- Sharing before friending: Add both accounts as Hytale friends first. Friendship is part of the supported connection flow and enables relay fallback.
- Forwarding TCP only: Dedicated-server traffic uses QUIC over UDP. Forward the selected UDP port; TCP rules alone do not expose the server.
- Testing only inside the same house: A local test can succeed even when the public address or router forwarding is wrong. Test from a separate connection.
- Publishing diagnostic details: Codes contain an IP address, and network reports may contain sensitive details. Send them privately to people helping you.
- Assuming Tailscale lowers latency: It solves reachability problems, but an overlay or relay can be slower than a direct route.
- Leaving authentication until later: Complete device authorization within the 900-second window documented for the server setup.
Share code or dedicated server?
| Question | Share code | Dedicated server |
|---|---|---|
| Must the owner be in the game? | Yes, the host’s world and session must be available. | No; the server can remain online independently. |
| Does it need a separate machine? | No. | Yes, either a rented instance or a self-hosted device. |
| Who manages networking? | Hytale attempts direct and relay routes; the host troubleshoots failures. | A provider handles much of it, while a self-host owner handles ports, firewall, and updates. |
| What is the strongest use case? | A few friends joining an existing world quickly. | Persistent uptime, larger groups, performance separation, and configuration control. |
| What should you protect? | The share code, because it contains the host IP address. | Server addresses, authentication material, operator credentials, and firewall exposure. |
Connection checklist
- Are all intended players Hytale friends?
- Did the host enable Online Play and Allow Other Players to Join?
- Was the setting saved before the code was copied?
- Is the code fresh and sent privately?
- Was the password entered, if it was not embedded?
- Did the host check Copy Network Report?
- Does Hytale have Windows Firewall permission on both private and public networks?
- Could double NAT, CGNAT, symmetric NAT, or a managed network be blocking the route?
- Would the other friend be a better host?
- If direct joining still fails, have both players tried Tailscale and generated a new code?
Frequently Asked Questions
Do I need a dedicated server to play Hytale with a friend?
No. The host can load a single-player world, enable Online Play, save the setting, and send a share code. A dedicated server is mainly for persistent uptime, larger groups, or extra configuration.
Where do I enter a Hytale server IP or share code?
For a friend world, open the main menu, choose Servers, select Join via Code, and paste the code. A dedicated server uses the address and port supplied by its owner in the server interface.
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Why does my Hytale share code not work?
Confirm that both accounts are Hytale friends, Online Play is enabled and saved, and the code is new. Copy the host’s Network Report, check firewall permissions, and test from a phone hotspot. An expired code, CGNAT, double NAT, or managed network filtering can also prevent a join.
Can I post my Hytale share code in a public chat?
No. The code contains the host’s IP address. Send it only to trusted players, never display it on a stream, and regenerate it if it was exposed.
How many players can join through a share code?
Hytale caps connection candidates considered for a share-code connection at 16. That is not a promise of 16 simultaneous players; practical capacity depends on the world, host hardware, network, and current multiplayer limits.
Does Tailscale replace port forwarding?
It can provide an alternate private path when CGNAT, double NAT, or firewall restrictions block normal connectivity. Both players install and sign in, the host saves Online Play again, and a fresh code is generated. It may add latency.
What does a self-hosted Hytale server require?
The documented baseline is an x64 or arm64 device with at least 4 GB of memory, Java 25, authentication, and UDP networking. The default bind is 0.0.0.0:5520, so routers normally forward UDP 5520 unless you choose another port with –bind.
Which companies offer Hytale dedicated-server hosting?
Hypixel Studios’ Launch Verified list names Nitrado, Apex Hosting, GPORTAL, Shockbyte, and Dathost. Compare current pricing, regions, support, backups, player capacity, and cancellation terms because plans can change.
The Bottom Line
Use Servers > Join via Code for a friend’s online single-player world. Keep the code private, regenerate it when it expires, and use the Network Report to diagnose failures. Choose a dedicated server when you need persistent uptime, more players, or server-level control; self-hosting requires Java 25, authentication, at least 4 GB of memory, and UDP networking on port 5520 by default.
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