Create a custom asset pack

To create a custom asset pack, create a directory with a name that ends with .androidpack. You can place this directory anywhere in your project’s Assets directory, or any subdirectory.

Important: Unity doesn’t import assets from .androidpack directories, so you can’t use assets in custom asset packs directly in Unity scenesA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
See in Glossary. To use assets from custom asset packs, you must manually access and load them dynamically at runtime. For information on how to do this, see Manage asset packs at runtime.

The following steps explain how to create a custom asset pack named MyAssets1:

1. Go to the directory you want to create the asset pack in. This could be directly in Assets or a subdirectory like Assets/CustomAssetPacks.
2. Create a new directory and call it MyAssets1.androidpack. To add any assets to the asset pack, place them inside this folder.
   Note: Unity doesn’t include empty asset packs in builds. Also, asset pack names must begin with a letter and consist of English alphanumeric characters or an underscore.
3. By default, the delivery mode is on-demand, which means that if you don’t change the delivery mode, you need to manually download the asset pack at runtime. For information on how to do this, see Manage asset packs at runtime.
4. To use a different delivery mode, create a file called build.gradle inside the custom asset pack directory. Paste the following into the file:

apply plugin: 'com.android.asset-pack'
assetPack {
    packName = "MyAssets1"
    dynamicDelivery {
        deliveryType = "fast-follow"
    }
}

This sets the delivery mode to fast-follow, which means Google Play automatically downloads the asset pack after it installs the application. For information on the format of this file, see Integrate asset delivery.

Note: The packName you specify in the build.gradle file should match the asset pack directory name you set without the .androidpack extension.

Additional resources

• Asset packs in Unity
• Manage asset packs at runtime