Play Mode Saver – Don’t Lose Your Runtime Tweaks

Publisher

Decnet Games

Please Note

This entry is from Sunday July 5, 2026. The price of the asset may have changed since then.
Please visit our homepage for recent offers and sales. Official and private Unity Asset Store™ sales usually last about 14 days.

Overview

Stop Losing Play Mode Changes in Unity -

Unity Play Mode is great for testing, but once you press Stop, all runtime tweaks are gone.

Values you carefully tuned, transforms you adjusted, debug changes you verified — everything resets.

Play Mode Saver fixes this workflow problem.

It tracks changes made during Play Mode, shows you exactly what changed, and lets you safely decide what should persist.

🚀 NEW in v1.1: THE PRO UPDATE We've listened! v1.1 transforms Play Mode Saver into a pro-grade tool.

• DEEP SERIALIZATION: Resize arrays, modify lists, and change deep structs at runtime. It just works.
• ZERO-CLICK WORKFLOW: Use [AutoSavePlayMode] on your scripts. Tweak stats in play mode, and they'll save automatically on exit. No prompt needed!
• PREFAB MASTER: Apply changes directly to your source prefabs with one click.
• PERFORMANCE FIRST: Re-engineered system ensures zero lag even in complex scenes.

🔧 What It Does -->

Live Runtime Change Tracking

• Detects modifications made during Play Mode
• Highlights changed GameObjects in the Hierarchy
• Marks modified fields directly in the Inspector

Smart Restore Window

• Automatically appears when exiting Play Mode
• Clear before/after comparison of values
• Apply changes selectively or all at once
• Works cleanly with Prefabs and overrides

Runtime Change Review & Export

• Review all modified values in a structured diff view
• Export selected changes for long-term use
• Helps convert temporary runtime experiments into permanent decisions

Attribute-Based Control

Fine-grained control over what should or shouldn’t be saved:

[SaveOnPlayModeExit]

[IgnoreRuntimeChanges]

Undo-Safe

• All applied changes are registered with Unity’s Undo system
• Fully reversible Preset, editor-friendly workflow
• Fully JSON Export Supported!

Designed for Iteration

• Experiment freely during Play Mode
• Decide later what should become permanent
• Reduce trial-and-error and repeated manual tweaking

Stable & Editor-Safe Workflow

• Editor-based solution with predictable behavior
• Works alongside Unity’s serialization and Undo system
• Designed to fit cleanly into existing production pipelines

✅ Compatible With

• Scenes, Components & Prefabs
• Built-in and custom components
• Unity 2021.3 LTS and newer (including Unity 6)

🎯 Ideal For

• Developers iterating on gameplay tweaks
• Designers tuning values live
• Teams tired of redoing Play Mode work

Play Mode Saver turns Play Mode into a safe experimentation space instead of a disposable test.

JOIN DISCORD | DOCUMENTATION | OTHER ASSETS