I'm working on a new tutorial series about object management, and this is the first installment. It covers the fundamentals of saving and loading binary data, plus hiding some of the details from other code. The Hex Map series also included saving and loading, but this series will go deeper.
The series begins with a very simple game: just spawn random cubes. It will get more involved later, increasing the complexity of the data that we have to save and load, while remaining fully backwards-compatible.
I haven't mentioned a specific month for when the next installment will be published. I omitted it that because I might some something else in between, instead of sticking to one series until it is finished.