PUN Classic (v1), PUN 2 and Bolt are in maintenance mode. PUN 2 will support Unity 2019 to 2022, but no new features will be added. Of course all your PUN & Bolt projects will continue to work and run with the known performance in the future. For any upcoming or new projects: please switch to Photon Fusion or Quantum.


Photon Cloud provides you with global connectivity to allow low latency gaming all around the world. This is done by hosting servers in various regions.

As the available regions may change over the lifetime of a project, clients get the current list of regions from our Photon Name Servers.

Each region is completely separate from the others and consists of a Master Server (for matchmaking) and Game Servers (hosting rooms).

photon cloud regions' connect flows
Connect to Photon Cloud regions

The list of available regions differs per product (Fusion, Quantum, Chat etc.). With the Region Allowlist, you can define which regions should be available per AppId (see below).

Below is the list of regions for this product.

Available Regions

The Photon Cloud consists of servers in several regions, distributed across multiple hosting centers over the world. Some regional servers only support specific products and client SDKs. This means for example that Fusion clients can use the region Japan but Chat can not.

Each Photon Cloud region is identified by a "region token", which is a case insensitive, short string. For example, "EU" or "eu" are both accepted and refer to the same Europe region.

RegionHosted inToken
Canada, EastMontrealcae
Chinese Mainland (See Instructions)Shanghaicn
Hong KongHong Konghk
South AfricaJohannesburgza
South AmericaSao Paulosa
South KoreaSeoulkr
United Arab EmiratesDubaiuae
USA, EastWashington D.C.us
USA, WestSan Joséusw
USA, South CentralDallasussc

Region Allowlist

There are several reasons why you should consider limiting the regions available to your players and users (see below). The Region Allowlist enables you to customize the available regions per application directly from the dashboard - without client side changes.

Open the dashboard, click "Manage" for a chosen application and then click "Edit Allowlist". You will find an input field where you can enter the list of allowed regions as follows:

  • the available regions are defined above per SDK and sometimes separately for the Industries Circle.
  • the allowlist must be a string of region tokens separated by semicolons. e.g. "eu;us".
  • region tokens are case insensitive.
  • undefined or unrecognized region tokens will be ignored from the list.
  • empty ("") or malformed string (e.g. ";;;") means all available regions are allowed.

Within 10 minutes of a change (confirm and save), the Name Servers will send the filtered list to connecting clients. To avoid conflicts on the client side, connect to the "Best Region" by ping or make sure to pick a region received with the regions list.

How To Choose A Region

Users in the US have the lowest latency if connected to the Photon Cloud US region. Easy.

But what if you have users from all over the world?

Options are..

  • a) let the game client ping the different Photon Cloud regions and pre-select the one with the best ping, read our how-to
  • b) distribute client builds tied to a region, so users from different regions connect to different Photon Cloud regions or
  • c) let the user choose a matching region from within your game`s UI.
  • d) let all users connect to the same region if the higher latency is acceptable for your gameplay.

All Photon Cloud apps are working in all available regions without any extra charge.

See pricing.

Photon Cloud's dashboard lets you monitor the usage of your game in each region and easily upgrade or downgrade your subscription plan.

Go to your dashboard.

How To Select A Region At Runtime

If you are not using the Best Region option, you may want to let your players choose which region to connect. This can help to lower the ping between players if they are connecting to a common near region or just want to join a session with friends that are playing on a specific region.

The region selection can only be done when Photon Bolt is not running and must be executed before you initialize the PhotonPlatform. We dispose of a list of available regions predefined in the UdpKit.Platform.Photon.PhotonRegion class, that you can use for listing the regions. In the following snippet, we show how you can change the target region in runtime:


public class Menu : Bolt.GlobalEventListener
    // Target Region
    private static int currRegion = 0;

    // List of available Regions
    private PhotonRegion.Regions[] availableRegions = new PhotonRegion.Regions[]

    private void UpdateRegion()
        if (BoltNetwork.IsRunning == false)
            // Get the current Region based on the index
            var targetRegion = PhotonRegion.GetRegion(availableRegions[currRegion]);

            // Update the target region

            // Log the update
            Debug.LogFormat("Update region to {0}", targetRegion.Name);

            // Next time we use the next region

            // Go back to 0
            if (currRegion == availableRegions.Length)
                currRegion = 0;

            // IMPORTANT
            // Initialize the Photon Platform again
            // this will update the internal cached region
            BoltLauncher.SetUdpPlatform(new PhotonPlatform());
            BoltLog.Error("Bolt is running, you can't change region while runnning");

As you can see, every time we call UpdateRegion(), it will pick the next region on the list availableRegions, and use the method BoltRuntimeSettings.instance.UpdateBestRegion to update the region to be used. Keep in mind, that you need to reinitialize the platform, as the region is cached, and will not change if you don't recreate it.

Using The Chinese Mainland Region

You need to request access to the Chinese Mainland region for your Photon application. Send us an email so we could unlock it for your AppID.
You cannot subscribe to paid plans to be used in the Chinese Mainland region via our website. Reach out to us by email to receive a quote for any subscription.

The Photon Name Server has to be local to China, as the firewall might block the traffic otherwise. The Chinese Photon Name Server is "ns.photonengine.cn".

Connecting with clients from outside of China mainland will most likely not produce good results. Also, connecting from the Photon servers to servers outside of China mainland (e.g. for Custom Authentication, WebHooks, WebRPCs) might not be reliable.

Important: in the current phase, changes you make to your app via your dashboard are not automatically reflected in the app caches for China. Let us know by email if you have an update request there.

Also, for legal reasons, you need a separate build for China and we recommend using a separate AppId with it. For example, use a compile condition (of your choice) to change the AppId and the Photon Name Server depending on the build.

Follow the instructions corresponding to your client SDK to make a special build for the Chinese market.

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