{
  "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json",
  "schemaVersion": 1,
  "id": "wwdc2026-378",
  "event": "wwdc2026",
  "eventName": "WWDC26",
  "year": 2026,
  "eventContentId": 378,
  "title": "Unlock in-game content with StoreKit and Background Assets",
  "description": "Unlock native Apple In-App Purchases for your Unity game with the new StoreKit plug-in. Reduce download sizes with the new Background Assets plug-in, which delivers language-specific asset packs so each player gets just what they need. Plus, a new Steam Asset Converter helps you migrate existing builds.",
  "url": "https://developer.apple.com/videos/play/wwdc2026/378",
  "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/378",
  "type": "Video",
  "publishedAt": "2026-06-08T14:00:00-07:00",
  "platforms": [
    "iOS",
    "iPadOS",
    "macOS",
    "tvOS",
    "visionOS",
    "watchOS"
  ],
  "keywords": [],
  "topics": [
    "App Services",
    "App Store, Distribution & Marketing"
  ],
  "primaryTopic": "App Store, Distribution & Marketing",
  "duration": 599,
  "hasTranscript": true,
  "transcriptWordCount": 1506,
  "availableLanguages": [
    "eng",
    "fra",
    "jpn",
    "kor",
    "por",
    "spa",
    "zho"
  ],
  "media": {
    "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/378/6/16c93f95-21e8-4f7f-bb96-2b3c682fa6c7/cmaf.m3u8",
    "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/378/6/16c93f95-21e8-4f7f-bb96-2b3c682fa6c7/cmaf-download.m3u8",
    "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/378/6/16c93f95-21e8-4f7f-bb96-2b3c682fa6c7/downloads/wwdc2026-378_sd.mp4",
    "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/378/6/16c93f95-21e8-4f7f-bb96-2b3c682fa6c7/downloads/wwdc2026-378_hd.mp4",
    "duration": 599
  },
  "codeSnippets": [
    {
      "title": "Asset pack manifest for a localized asset pack",
      "language": "json",
      "startTimeSeconds": 186,
      "code": "// Asset pack manifest\n\n{\n   \"assetPackID\": \"voice-english\",\n   \"downloadPolicy\": { /* … */ },\n   \"language\": \"en-US\",\n   \"sourceRoot\": \".\",\n   \"fileSelectors\": [ /* … */ ],\n   \"platforms\": [ /* … */ ]\n    //… \n}"
    },
    {
      "title": "Convert a Steam depot to an asset pack manifest",
      "language": "bash",
      "startTimeSeconds": 207,
      "code": "# Convert a Steam depot to an asset pack manifest\nxcrun ba-package convert --asset-pack-id voice-english -l en-US --on-demand voice-english.vdf -o voice-english.json"
    },
    {
      "title": "Convert an asset pack manifest to an asset pack archive",
      "language": "bash",
      "startTimeSeconds": 208,
      "code": "# Convert an asset pack manifest to an asset pack archive\nxcrun ba-package voice-english.json -o voice-english.aar"
    },
    {
      "title": "Fetch and purchase products with the StoreKit plug-in",
      "language": "csharp",
      "startTimeSeconds": 352,
      "code": "// Fetch and purchase products with the StoreKit plug-in\n\nusing UnityEngine;\nusing Apple.StoreKit;\n\nasync void Start() {\n    var products = await Product.FetchProducts(new[] {\n            \"com.thecoast.capecod\"\n    });\n}"
    },
    {
      "title": "Fetch and purchase products with the StoreKit plug-in",
      "language": "csharp",
      "startTimeSeconds": 361,
      "code": "// Fetch and purchase products with the StoreKit plug-in\n\nusing UnityEngine;\nusing Apple.StoreKit;\n\nasync void Purchase(Product product) {\n    var result = await product.Purchase();\n    if (result.Result == PurchaseResult.ResultEnum.Success\n        && result.TransactionVerification.IsVerified)\n    {\n        // Unlock access to purchased content\n\n        result.TransactionVerification.SafePayload.Finish();\n    }\n}"
    },
    {
      "title": "Listen for Transaction updates with the StoreKit plug-in",
      "language": "csharp",
      "startTimeSeconds": 383,
      "code": "// Listen for Transaction updates with the StoreKit plug-in\n\nusing UnityEngine;\nusing Apple.StoreKit;\n\npublic static class TransactionListener {\n    public static void Initialize() => Transaction.Updates += OnUpdate;\n\n\n    async void OnUpdate(VerificationResult<Transaction> result) {\n        if (!result.IsVerified) return;\n        var verifiedTransaction = result.SafePayload;\n\n        // Consumables are not in CurrentEntitlements, so handle them inline\n        if (verifiedTransaction.ProductType == ProductType.ProductTypeEnum.Consumable) {\n            if (verifiedTransaction.RevocationDate != null) {\n                // Revoke the consumable identified by verifiedTransaction.ProductId\n            } else {\n                // Grant access to the consumable\n            }\n        }else {\n            // Non-consumables and subscriptions: re-read CurrentEntitlements as source of truth\n            await foreach (var verificationResult in Transaction.GetCurrentEntitlements()) {\n                if (!verificationResult.IsVerified) continue;\n                // Grant access to the product\n            }\n        }\n        verifiedTransaction.Finish();\n    }\n}"
    },
    {
      "title": "Download asset packs with the Background Assets plug-in",
      "language": "csharp",
      "startTimeSeconds": 433,
      "code": "// Download asset packs with the Background Assets plug-in\n\nusing Apple.BackgroundAssets;\nusing UnityEngine;\n\nasync void LoadTutorial(string language) {\n    try {\n        string assetPackId = $\"tutorial-{language}\";\n        AssetPackManifest manifest = await AssetPackManager.GetManifestAsync();\n        AssetPack assetPack = manifest.GetAssetPack(assetPackId);\n        CancellationTokenSource tokenSource = new CancellationTokenSource();\n        _ = Task.Run(async () => {\n            await foreach (AssetPackManager.DownloadStatusUpdate statusUpdate in AssetPackManager.DownloadStatusUpdatesAsync(assetPackId)) { \n            \t\t// Update download progress in UI\n            }\n        }, tokenSource.Token);\n        await AssetPackManager.EnsureLocalAvailabilityOfAssetPackAsync(assetPack);\n        tokenSource.Cancel();\n        // Start tutorial with the locally available assets\n    } catch (Exception exception) {\n        // Handle the exception\n    }\n}"
    }
  ],
  "resources": [
    {
      "title": "Apple Unity Plug-Ins on GitHub",
      "url": "https://github.com/apple/unityplugins",
      "type": "download",
      "description": null
    },
    {
      "title": "Background Assets",
      "url": "https://developer.apple.com/documentation/BackgroundAssets",
      "type": "documentation",
      "description": "Improve or eliminate the time people wait while your app downloads assets.",
      "sosumiURL": "https://sosumi.ai/documentation/BackgroundAssets",
      "doccJSON": "https://developer.apple.com/tutorials/data/documentation/BackgroundAssets.json"
    },
    {
      "title": "StoreKit",
      "url": "https://developer.apple.com/documentation/StoreKit",
      "type": "documentation",
      "description": "Support In-App Purchases and interactions with the App Store.",
      "sosumiURL": "https://sosumi.ai/documentation/StoreKit",
      "doccJSON": "https://developer.apple.com/tutorials/data/documentation/StoreKit.json"
    }
  ],
  "path": "sessions/wwdc2026/378-unlock-in-game-content-with-storekit-and-background-assets/",
  "files": {
    "metadata": "sessions/wwdc2026/378-unlock-in-game-content-with-storekit-and-background-assets/metadata.json",
    "readme": "sessions/wwdc2026/378-unlock-in-game-content-with-storekit-and-background-assets/README.md",
    "transcript": "sessions/wwdc2026/378-unlock-in-game-content-with-storekit-and-background-assets/transcript.md",
    "transcriptJSON": "sessions/wwdc2026/378-unlock-in-game-content-with-storekit-and-background-assets/transcript.json"
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}