Can Someone Explain How Lightweight Web Games Manage Offline Progression?-Forum-Culture Informatique

Hi everyone,

I’ve recently been exploring how some modern browser-based games manage to offer features like offline progression, dynamic animations, and data persistence — all without any installation. I came across a lightweight game recently (a simple clicker with quirky animations) that continues to generate points even after closing the tab. This made me curious:

• How do these games store player data locally?
• Is it mostly done via localStorage, IndexedDB, or something else?
• How do they detect when the user returns and calculate the offline gains accurately?
• Are there common design patterns or best practices used in this type of web development?

For example, I saw a game I think it’s called something like Tung Sahur Clicker — which uses very basic visuals but somehow keeps track of upgrades and time-based progress when you’re away.

I’m not trying to reverse engineer anything, just genuinely curious how this works under the hood. Any resources or explanations would be greatly appreciated!

Thanks in advance!