AC has a solid, hardcore userbase. That it sold 35m units and most of those quit by summer 2020 is normal for any game. No game lasts forever unless you really like it.

TikTok is a behemoth and just keeps growing.

A lot of people still play Among Us and like it. Malls are full of Among Us t-shirts and plushies.

I'll give you Clubhouse though.

Clubhouse was cloned as Twitter Spaces and everyone moved there. It's still being used by its audience of weirdo business coaches and NFT people.

That's most things, though. There's so much crap out there, most people keep moving to the next hot thing rather than keep consuming the same thing. How many people are still watching the Avengers Endgame movie today? Or season 8 of Game of Thrones? Probably roughly the same amount (proportionately) that are still playing Animal Crossing or Among Us today.

Animal Crossing did just get a major update that was well-received and tied to a premium Nintendo Online subscription a few months ago, btw. Still popular enough for that. Definitely nowhere as huge as it was two years ago though.

Animal Crossing was the perfect thing to be released when everyone was stuck in their homes at the start of the pandemic, though, as it offered an escape and even had a 'travel to an island' theme to it. My wife and a bunch of my friends put several hundred hours into it, and I put 55 hours into it, which is about three times as much as an Animal Crossing game usually gets out of me.

Among Us still has its fans. I join a group every once in a while that sets up monthly game nights for it. That one has dropped quite a bit though. Eventually the game was unofficially made into a game mode in Fortnite, from what I hear, and I think that game mode gets played more within Fortnite now than the Among Us game does, but I'm not really sure.

It's also not too far removed and most likely inspired by social deduction board games that have existed and have been popular since the Werewolf/Mafia game from 1986, which Among Us is basically an action Werewolf with minigames and cute, marketable characters.

Tiktok is larger than ever, that seems like a bad one to include. Sourdough was legit flash in the pan, I think.

I don't think I'd call "massively popular cult following series of games that's been around since 2004" a "pandemic flash in the pan", really.

TikTok is definitely still going stronger than ever. Clubhouse on the otherhand was valued at $4b somehow and has now been cloned by every other social media platform.

I think OP means the trends that fall in and out of favor on TikTok itself.