No download usually means you do not install a separate game application. Your browser still retrieves the files needed to display and run the game, so an internet connection and data usage can still matter.
Loading is different from installing
MDN describes a browser requesting resources from a server and assembling a web page. A game can include scripts, pictures, sound and other assets. The first visit may transfer more than a repeat visit if reusable files are cached, but caching is not guaranteed and does not promise offline play. A small website page can also open a much larger game player.
Try the steps
- On a limited connection, let one game finish loading before opening several others.
- Distinguish a loading screen from an installer prompt; ordinary browser play does not require a separate executable.
- Check the game's own offline and save information instead of inferring it from the phrase no download.
Does clearing the cache make the next visit faster?
Not necessarily. It can force files to be fetched again. Clearing site data can also remove local progress if the game stores it there. Use a reload as a simpler diagnostic step before removing stored data.
