Simple Database is a Unity editor extension that will allow you to manage your save files easily and efficiently.
You can view an example on how to use this asset by looking inside the "Demo Scene" folder.
A quick start guide is available at https://skytanet.com/SimpleDatabase/quickstart
You can view a project description at https://skytanet.com/SimpleDatabase/introduction
If you have any questions send me an email at info@skytanet.com.
To start using this asset I would recommend downloading the asset "Json.NET Converters - Simple compatible solution" from Wanyzee Studio:
This asset is completely free and will take care of serializing a bunch of unity types. If you are having problems with dictionaries just delete the following script:
WanzyeeStudio > Scripts > Runtime > Concrete > Json > DictionaryConverter
And run the tests to make sure that everyting is working properly.