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Quick Start: Unity Apps

Early Preview Release

This feature of the Arcana Auth SDK is available only for Arcana Testnet as an early preview. Use it with caution. We are actively working on adding more functionality and fixes before making a formal release.

Web3 'Unity' gaming apps can integrate with the Arcana Auth Unity SDK and onboard users via social login. The authenticated users can access the Arcana wallet instantly within the app context and sign blockchain transactions.

1. Register & Configure

Begin by registering the app and configuring auth settings the Arcana Auth Unity SDK usage via the Arcana Developer Dashboard. Note the unique value, Client ID, assigned to the app. It is used later for app integration.

See how to configure user onboarding and gasless transaction settings Arcana Auth Unity SDK.

2. Unity Setup, Auth SDK Install

  • Install NuGetForUnity.

  • In the NuGet Toolbar at the top, click NuGet > Manage NuGet packages.

    Manage NuGet Packages
    Manage NuGet Packages

  • Install the following packages by STA: Nethereum.Web3, WebsocketSharp.Core

  • Use the Unity Editor Project Settings window to edit package settings for your project. Click Edit > Project Settings > Package Manager.

    • Edit Project Settings with URL and set the scope to com.cysharp.unitask, dev.voltstro

      Pkg Manager 1
      Edit Project Settings

    • Add another new scoped registry with URL and set the scope to org.nuget.

      Add Scoped Registry
      Add Scoped Registry

  • In the NuGet window, use the NuGet Toolbar at the top, and click Window > Package Manager > Add Package by Name.

    Add Package by Name
    Add Package by Name

  • Add the following packages: com.cysharp.unitask, `dev.voltstro.unitywebbrowser.engine.cef

    • Windows:

    • Linux: dev.voltstro.unitywebbrowser.engine.cef.linux.x64

    • MacOS: dev.voltstro.unitywebbrowser.engine.cef.macos.x64

See Unity Web Browser package list for details.

  • Download the Arcana Auth Unity SDK package: Unzip the contents and copy them to the Assets folder of the Unity Project.

  • Search for ArcanaSDK prefab in the 'Project Window' of the Unity Editor. Click Assets > ArcanaSDK > Prefabs > ArcanaSDK. Drag this prefab into the project 'Hierarchy' and configure the prefab as shown here:

    Configure Arcana Prefab
    Configure Arcana Prefab

3. Integrate

Initialize the Arcana Auth Unity SDK by specifying the unique Client ID assigned to the app after registration.

using ArcanaSDK;

await arcanaSDK.InitializeSDK(env, "unique_clientID_for_registed_app");

Use latest SDKs

Use the latest Arcana Auth Unity SDK release v1.1.0 available at npm-registry.

Onboard Users

Call LoginWithSocial or LoginWithOTP to onboard the user. Choose one of the supported user onboarding options such as Google, Steam, etc.

// After initializing the SDK

if (loginMethod == LoginMethod.Passwordless)

Sign Transactions

Add code in authenticated user's context to call Request method and make Web3 Wallet operation requests.

responseTextField.text = "";
if (parameters.text != null)
  response = (await arcanaSDK.Request(new RequestParams {
      Method = method.text,
      Params = JsonConvert.DeserializeObject<object[]>(parameters.text)
  response = (await arcanaSDK.Request(new RequestParams {
      Method = method.text,

4. Deploy

That's all!

The Unity app is now ready to onboard users via the specified login method. Once the user logs in, the Arcana wallet will be instantly accessible for Web3 wallet operations within the app context.

See also

Last update: April 12, 2024 by shaloo, shaloo