Examples of recent indie games like this: Among Us, Valheim, Phasmophobia, Rimworld, Hollow Knight,...
Here's a whole list: https://store.steampowered.com/curator/39750107-Games-Made-W...
Other than the 'extremely' popular games, you'd be surprised who surpasses those numbers. A small game studio by me was showing their financials at a talk (unheard of!), and the 'long tail' of their games definitely went past those numbers - and more costs coming in after a certain point just make the game less likely to be supported and discounted/sold.