Auto Save with time stamp

Is it possible to auto save with timestamp so a person can go back to a certain time of making the game

example_YYMMDD_HHMMSS

shooter_180720_120705

You can give timestamps to saves, but it's not possible to browse all existing saves. So you'll have to write the list of all save files to Local Storage. When player wants to load a game, you'll need to retrieve the list of all saved games from local storage and display this list to the player.

To generate the timestamp you can use JS code, for example:

I was more looking for a way to timestamp the filename when it autosaves

And I gave you the way to generate the timestamp, see the screenshot in my first comment. You get your timestamp in the d variable, you can do "Save game to slot d".

But in order to load this game, you will need to know the exact name of the slot, that's why you should also store it somewhere else. The easiest method is to store it in Local Storage.