hopefully the last How do I for this project

I am working on a puzzle game with 100`s of levels. I have a global number (LVL) that lets the game know what level the player has reached. is there a simple way to store this global within the game (locally, so no internet connection needed) even if the game is closed and restarted at a later date?

You can using webstorage:

https://www.scirra.com/tutorials/266/we ... nformation