I think you might be talking about Flash games. Here’s an article that summarizes Flash and what happened to it:
https://www.techspot.com/article/2413-adobe-flash/
This is a game changer.
Jumping Flash (ps1) was my first ever game. https://en.m.wikipedia.org/wiki/Jumping_Flash!
It was pretty hard as a 5 year old.
I think you might be talking about Flash games. Here’s an article that summarizes Flash and what happened to it:
https://www.techspot.com/article/2413-adobe-flash/