>>715103462Terraria has gotten developer support, updates, and content since it launched, just like a live service game would. That it doesn't monetize like a gacha game, doesn't make it a non-live service game.
https://terraria.fandom.com/wiki/PC_version_history
I'll check on the other games, but I'm guessing that more and more players aren't playing games that are years and years old that have not been receiving continuous developer support to ensure players are being serviced.