Version: 2021.3
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Save your work

Unity categorizes most saved information into either scene changes or project-wide changes.

  • To save all current scene and project-wide changes, go to File > Save (or Save as).
  • To save Project-wide changes, but not Scene changes, go to File > Save Project.

Note: If you edit in Prefab Mode, saving through File > Save only saves changes to the open Prefab. Exit the Prefab Mode to save wider changes.

Unity saves some information automatically while you work in the Editor. See Automatic saves for more details.

Scene changes

Scene changes include modifications to GameObjectsThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary
in the SceneA 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
. For example:

  • If you add, move, or delete a GameObject.
  • If you change a GameObject’s parameters in the InspectorA Unity window that displays information about the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. More info
    See in Glossary
    window.

Project-wide changes

Project-wide changes in Unity apply to your entire project rather than a specific scene. For example, if you create a temporary scene to test changes, you can save the project and not the scene.

Project-wide changes include:

  • Project SettingsA broad collection of settings which allow you to configure how Physics, Audio, Networking, Graphics, Input and many other areas of your project behave. More info
    See in Glossary
    : When you save your project, Unity saves changes to the Project Settings in the Library folder, in these files:

    • Input: InputManager.asset
    • Tags And Layers: TagManager.asset
    • Audio: AudioManager.asset
    • Time: TimeManager.asset
    • Player: ProjectSettings.asset
    • Physics: DynamicsManager.asset
    • Physics 2D: Physics2DSettings.asset
    • Quality: QualitySettings.asset
    • Graphics: GraphicsSettings.asset
    • Network: NetworkManager.asset
    • Editor: EditorUserSettings.asset
  • Build Settings: Unity saves changes to the Build Settings in the Library folder as EditorBuildSettings.asset.

  • Changed assets: When you save project-wide settings, Unity saves any unsaved assets.

    Note: Some asset types have an Apply button in the Inspector. Unity will not save these unless you select Apply.

  • Dirty assets: Unity saves Dirty assets, which are files on your disk that are modified in the software but not saved yet. You can use custom Editors and scriptsA piece of code that allows you to create your own Components, trigger game events, modify Component properties over time and respond to user input in any way you like. More info
    See in Glossary
    to mark an Asset as dirty in one of these ways:

Automatic saves

Unity automatically saves the following changes to your disk:

  • New assets: Unity automatically saves new assets when you create them but you need to save later changes.
  • Asset Import Settings: For the changes to take effect with most assets, you need to select Apply in the Inspector window. Unity saves the changes when you select Apply.
  • Baked data: When you have data that is set to Baked in your project, Unity saves this data after the bake finishes. This includes:
    • Baked Lighting data
    • Baked navigation data
    • Baked occlusion cullingA that disables rendering of objects when they are not currently seen by the camera because they are obscured (occluded) by other objects. More info
      See in Glossary
      data
  • Script execution order changes: After you select Apply, Unity saves this data into each script’s .meta file.
Static GameObjects
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