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    Loading a scene asynchronously in Unity allows the current scene to continue running while the new scene loads in the background. This is particularly useful for creating loading screens.

    Example

    using System.Collections;
    using UnityEngine;
    using UnityEngine.SceneManagement;

    public class Example : MonoBehaviour
    {
    void Update()
    {
    // Press the space key to start coroutine
    if (Input.GetKeyDown(KeyCode.Space))
    {
    // Use a coroutine to load the Scene in the background
    StartCoroutine(LoadYourAsyncScene());
    }
    }

    IEnumerator LoadYourAsyncScene()
    {
    // The Application loads the Scene in the background as the current Scene runs
    AsyncOperation asyncLoad = SceneManager.LoadSceneAsync("Scene2");

    // Wait until the asynchronous scene fully loads
    while (!asyncLoad.isDone)
    {
    yield return null;
    }
    }
    }
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    Important Considerations

    Controlling Scene Activation

    You can control when the new scene becomes active by setting allowSceneActivation to false. This is useful if you want to load a scene but delay its activation until a specific event occurs.

    Does async scene loading work in editor?
    None of the async scene loading works in editor. It’s always blocking. The purpose of the attached demo was to work around the Unity input “key held down gets released” bug on scene changes. From it you can see the processes I used to seamlessly transition from scene to scene. You can refactor it to async and see what it does.
    discussions.unity.com
    Unity Discussions
    https://discussions.unity.com/t/asynchronous-scene-loading/944202
    Asynchronous scene loading - Unity Engine - Unity Discussions
  2. unity3d.com
    https://docs.unity3d.com › Documentation › ...

    Unity - Scripting API: …

    Loads the Scene asynchronously in the background. You can provide the full Scene path, the path shown in the Build Settings window, or just the Scene name. If you only provide the Scene name, Unity loads …

  3. Unity Discussions
    https://discussions.unity.com › asynchronous-scene-loading

    Asynchronous scene loading - Unity Engine - Unity Discussions

    Apr 11, 2024 · There is a script on the loading scene (listed below) that performs asynchronous loading of the level scene. The loading scene has text with the loading percentage and a progress bar. They …

  4. YouTube
    https://www.youtube.com › watch

    Additive Async Multi-Scene Loading in Unity - YouTube

    Mar 3, 2024 · Learn how to load multiple scenes asynchronously and additively, at the same time in Unity, with plenty of customization and a load screen.

  5. Medium
    https://medium.com › @occasoftware

    Using LoadScene and LoadSceneAsync in Unity - Medium

    May 26, 2023 · Now that you are comfortable using LoadScene and …

    • bugnet.io
      https://bugnet.io › blog › fix-unity-scene-loading-freezes-game

      Fix: Unity Scene Loading Freezes the Game | Bugnet Blog

      Mar 18, 2026 · This is one of the most common and most jarring issues in Unity games, and it happens because synchronous scene loading blocks the main thread entirely. Here is how to fix it properly with …

    • meta.com
      https://developers.meta.com › horizon › blog › avoiding...

      Avoiding Hitches When Loading Scenes in Unity

      Dec 15, 2021 · Loading a scene from disk can take a long time, especially with a number of meshes and textures. It’s a lot of data to read. That’s why Unity provides a method to load a scene asynchronously, …

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    • Stack Overflow
      https://stackoverflow.com › questions

      Loading scene asynchronously in Unity3D not working

      Apr 3, 2019 · So I've done some research about how loading scenes asynchronously works on unity. So far I've found two ways of doing that are very similar and that are based in the same principle.

    • Unity Discussions
      https://discussions.unity.com › loading-screen-and-load-scene-async-question

      Loading Screen and Load Scene Async Question - Unity Discussions

      Oct 24, 2022 · I have a scene that contains a coroutine to download images from the web in the Start() method. I’m trying to load this scene using LoadSceneAsync, with a loading screen that I’m putting up …

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      Proper way to load & unload a scene - Unity Discussions

      Feb 14, 2023 · The purpose of the attached demo was to work around the Unity input “key held down gets released” bug on scene changes. From it you can see the …

    • YouTube
      https://www.youtube.com › watch

      Unity Async Scene Loading - YouTube

      Nov 9, 2025 · Unity Async Scene Loading Learn how to use Unity's async scene loading feature in this tutorial for game developers. Improve your game's …

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