Unity - Persistence
Options:
PlayerPrefs
JSON
Binary
References
Live Training 3 Mar 2014 - Data Persistence
https://github.com/protobuf-net/protobuf-net
4 Ways to SAVE/LOAD data in Unity And their CONS and PROS - PlayerPrefs, BinaryFormatter, JSON, XML
https://github.com/zheyuanzhou/Youtube-Unity-Tutorial/tree/master/EP48_SaveLoadBySerialization/Scripts
https://www.reddit.com/r/Unity3D/comments/4p09ir/why_use_jsonnet_over_binary_or_something_like/