Never lose your Play Mode tweaks again. Capture every change made in Play Mode, compare it side by side with the original and keep exactly what you want – with one click and full Undo.The tool itself is editor-only and independent of the render pipeline: it works the same in the Built-in Render Pipeline, URP and HDRP.The optional demo scenes use Built-in Standard materials. In URP or HDRP they appear pink; convert them with Window > Rendering > Render Pipeline Converter, or simply ignore the colors – the demo works either way.Stop losing your Play Mode tweaks! Play Mode Changes Saver records every change you make during Play Mode and lets you keep exactly the ones you want – no setup required.The workflow follows Unity's Prefab Overrides: changed objects get a "Play Mode Overrides" button in the Inspector, a side-by-side view shows original and current values, and you apply or revert per property, per component or per object.KEY FEATURESAutomatic tracking – snapshots all GameObjects, components and names when you enter Play Mode. Nothing to configure.Inspector integration – a "Play Mode Overrides" panel on every changed GameObject with Apply All, Revert to Original and Revert to Saved.Side-by-side comparison – original values on the left, current values on the right, per component.Overrides Browser (Tools > Play Mode Overrides Browser) – all pending and applied changes of the open scenes in one window, in Edit Mode and Play Mode.Guided apply after Play Mode – a dialog asks which changes to keep; changes in other scenes are applied scene by scene.Prefab-aware – changes on prefab instances are written to the right instance as regular prefab overrides; the prefab asset stays untouched.Reliable object matching – objects are identified by their GlobalObjectId, with the hierarchy path as fallback, so renamed objects and objects with the same name are handled correctly.Full Undo/Redo for everything applied after Play Mode.WHAT IS TRACKEDTransform and RectTransform (position, rotation, scale, anchors, pivot, size, offsets)All serialized fields of built-in components and your own MonoBehaviours: numbers, booleans, strings, enums and flags, colors (incl. HDR), vectors, quaternions, rects, bounds, layer masks, gradients, animation curves, arrays and lists, nested classes and structs, object referencesThe enabled state of components and the connected body of jointsMaterial assignments on renderersGameObject namesLIMITATIONSFields marked [HideInInspector] are not tracked.Material instances created at runtime (renderer.material) are not saved; the material slot is left unchanged.Objects created at runtime and changes to ScriptableObject assets are not tracked.REQUIREMENTSUnity 2022.3 LTS or newer (tested on 2022.3, 6000.0 and 6000.6).Editor-only: nothing ends up in your builds, no runtime overhead.Works with the Built-in Render Pipeline, URP and HDRP. The optional demo scenes use Built-in materials and Unity UI (uGUI).DOCUMENTATION & SUPPORTA README and a PDF manual are included in the package. Questions, bugs or ideas: open an issue on GitHub (github.com/062Leo/Unity-Runtime-Changes-Saver) or use the contact form linked in the README.This tool is free. If it saves you time, a rating and a short review on the Asset Store help a lot.Editor-only: one editor assembly (PlayModeChangesSaver.Editor), all code in the PlayModeChangesSaver namespace.No runtime footprint: no runtime code, no runtime overhead, nothing included in player builds.No dependencies: no third-party code or packages. The optional demo uses Unity UI (uGUI).Unity versions: 2022.3 LTS or newer; tested on 2022.3.62f3, 6000.0.76f1 and 6000.6.4f1.Render pipelines: independent of the render pipeline (Built-in, URP, HDRP).Menu: Tools > Play Mode Overrides Browser.Object identification: via GlobalObjectId, with scene and hierarchy path as fallback; prefab instances are matched across Play Mode and Edit Mode.Storage: changes are kept in ScriptableObject assets in the package's Scriptable_Objects folder (created automatically, also when the package folder is moved) and cleared on the next Play Mode start.Undo/Redo: full integration for applied changes.Enter Play Mode Options: supported, also with Domain Reload and Scene Reload disabled.Tested: covered by 250+ automated EditMode tests, including Play Mode round trips.AI tools were used as coding assistants during development: LLM's for code suggestions, refactoring and brainstorming. All AI-assisted code was reviewed, tested in the Unity Editor and verified with the automated test suite on Unity 2022.3, 6000.0 and 6000.6.
