What I mean by that is, have you ever had a browser game you were liking a lot playing it, then after some years you kinda forget about it and then somehow something reminded you about it, so you check it and to your surprise it still exists?
I used to play a lot in Słodki Flirt (I think the English version is called Candy Love, I'm not sure), it was a browser otome game with well... Let's say the story and characters weren't very well written in my opinion but I LOVED IT.
After some years, my friend reminded it of me and well, the website still exists and people still playing it. My nostalgia hit me and now I'm playing it again, trying to finish all the chapters.
You can also write about browser game that doesn't exist anymore and you miss it!