SavePatch Pro | Save Migration & Data Versioning Framework

SavePatch PRO helps you evolve your game's save data without breaking existing player progress. When a live game changes its save structure, older save files can become incompatible. That leads to corrupted progress, failed loads, emergency hotfixes, negative reviews, and support overhead. SavePatch PRO is a save data versioning and migration framework for Unity built to solve that problem. It gives you a structured migration pipeline so older save files can be upgraded to the latest schema version safely and predictably as your game evolves. Best suited for RPGs, Survival games, Strategy games, Simulation games, Mobile games with persistent progression, and Indie and studio projects that expect multiple updates after release. Core capabilities: Save schema versioning, Incremental migration pipeline between versions, Pre-migration and post-migration validation, Save inspection and migration simulation tools, Before/after diff visualization, Backup-aware migration workflows, Report export for debugging and QA, Serializer-agnostic architecture, Included JSON-based workflow for getting started. What you can do with it: Detect the version of an existing save file, Upgrade old save data to the current schema version, Rename, move, remove, or transform fields through explicit migration steps, Validate saves before and after migration, Preview exactly what changed before exporting the migrated result, Reduce the risk of broken saves after patches and content updates. Included editor tooling: Save Inspector, Migration Simulator, Diff Viewer, Validation tools, Report export workflow. Why teams use it: Protects player progress across updates, Makes save evolution more predictable, Reduces migration-related regressions, Improves debugging and QA visibility, Supports production workflows better than ad hoc save patch scripts. What is included: Runtime migration engine, Save container/document model, Validation framework, Diff engine, Backup-oriented migration flow, Editor tools for inspection, simulation, validation, and reporting, Documentation, Quick start guide, Example migration workflows. Important scope note: SavePatch PRO focuses on save versioning, migration, validation, and editor tooling. It is not a complete in-game save UI system. Dependencies / Requirements: Unity 2021.3 LTS or newer, Requires Newtonsoft.Json via Unity Package Manager (com.unity.nuget.newtonsoft-json). A setup installer is included to help install this dependency automatically on import. Typical use case: You ship Version 1 of your game with one save structure. Later, Version 2 or Version 3 changes field names, restructures data, or adds new systems. SavePatch PRO lets you migrate older save files forward so players can continue without losing progress. If your game stores player progress and you expect to update that save structure over time, SavePatch PRO is built for exactly that workflow.