> ## Documentation Index
> Fetch the complete documentation index at: https://docs.altoura.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Step 4: Create an Asset Bundle with Altoura Prefabs

> In order to create Asset Bundles there are two Altoura Unity Toolkit Prefabs that you must drag into your scene: 1) Dollhouse and 2) Realscale. A Unity Prefab is a collection of Game Objects and 3D Content that is saved within the Unity Project for reuse.

Ensure colliders against all Training objects and Success Colliders are disabled.

<Frame caption="Within the ‘Projects’ folder, expand ‘Assets’, expand ‘AltouraToolkit1.2’, expand ‘Prefabs’, then select the folder ‘Basic Scene’. Drag the Realscale and Dollhouse prefabs into your scene. NOTE: Do not rename the prefabs.">
  <img src="https://mintcdn.com/altoura-785c3552/z2_JFZPNE9ekTL9F/images/docs/a71d532-Prefabs.png?fit=max&auto=format&n=z2_JFZPNE9ekTL9F&q=85&s=6029f6d8157023327589d4f2f4d993e8" width="254" height="549" data-path="images/docs/a71d532-Prefabs.png" />
</Frame>

You can now create an Asset Bundle for upload into an Altoura Portal Project. Select ‘**Window**’ in the top menu, then ‘**Asset Bundle Helper**’.

<img src="https://mintcdn.com/altoura-785c3552/rSHiWKFaLfV4dcN7/images/docs/5b2f6bb-AssetBundleWindow.png?fit=max&auto=format&n=rSHiWKFaLfV4dcN7&q=85&s=c37cf9c8e607c2970b59a13285199a76" alt="" width="444" height="209" data-path="images/docs/5b2f6bb-AssetBundleWindow.png" />

Check ‘PC’ (or Mac) as the build option, then select ‘Build’.

<img src="https://mintcdn.com/altoura-785c3552/rSHiWKFaLfV4dcN7/images/docs/5984ed6-PC_build.png?fit=max&auto=format&n=rSHiWKFaLfV4dcN7&q=85&s=472462cdacb248cc971ccbfd22502c0a" alt="" width="450" height="314" data-path="images/docs/5984ed6-PC_build.png" />

NOTE: The Asset Bundle Helper will place the Asset Bundle under the Asset Folder within your Unity Project Files folder: "**c:\Altoura\Hello World Tutorial\Altoura Hello World\Assets\AssetBundles**". You will later need to reference when uploading into your Altoura Portal Project.

* [Step 5: Create an Altoura Project](/docs/tutorials/hello-world-unity/altoura-project)