Workes 

Engine-neutral content-entry storage for simple streams, keyed records, and extensible application content workflows.

Provides tools to easily create almost any type of game-oriented inventory system, and also has many extension contracts that can be used to extend the system easily.

Engine-neutral .NET save system with provider registration, snapshots, backups, migrations, and JSON serialization.

An optional companion package for Workes.SaveSystem, designed to add a MessagePack serializer.