I mean they changed the algorithm, I used to be in a number of lists and relatively high up, too. I was in the top five overall Twine tagged games (usually floating around number two to number five) for a long time. My other game, Hex, was usually in the top ten or twenty of that list. In “text based + adult” I was also gnerally on the first page/first load, often both games were. They changed the algorithm on the 8th. The list of popular games in the last X days is still informed by the new algorithm, it’s not like a stored historical snapshot or something.
I mean even if you don’t believe me that my game dropped off a cliff, it did. I can see the metrics. I’m not sure why you’d doubt me.
That HTML hosting change has nothing to do with this issue at all, that might just make some players lose their saved games when it happens (and it hasn’t yet), but it won’t effect metrics AFAIK. Even if it does effect metrics, it hasn’t happened yet.