I bought the game on Steam because I normally put so many hours into Bethesda games that getting Game Pass for it would be a waste of money. However, while the game is pretty good, it's gotten old for me way faster than previous Bethesda franchises. It's going to take a LOT of work from mod authors before I even dream of putting as much time into the game as Skyrim or Fallout 4.

Weird that the most popular answer is 12-14 million yet not a single comment has mentioned those numbers.

With all due respect, I wouldn't be so sure.
I mean... Fallout 4 has around 14M lifetime sales, a much more famous franchise, available on Playstation and without influence from Gamepass...
It's possible that Starfield will exceed 10M, for sure, but I wouldn't be surprised if the final number ends up considerably below 10M.

I think it will still be likely that it'll hit 10 million. I don't think it'll be any time soon but I think down the road, given enough content and probably sales, it will hit that mark. Unfortunately, we will are just going to keep getting info on amount of players versus amount of sales but either way, it seems like Microsoft and Bethesda are happy with the results. So I guess that'll keep Starfield a priority on their list. 

Fallout 4 had shipped 25M copies as of 2020.

Yeah honestly i dont know where he is getting that 14m figure from since the game sold like 12 million copies in 24 hours.

i saw the number on google, but VGchartz puts Fallout 4 at 20M in 2017.
So yeah, my mistake, Fallout 4 is +20M for sure.

The current number is 11 million.

https://www.futuregamereleases.com/2023/10/starfield-gathers-11-million-players-under-its-wing/

Now we've reached 12 million

https://www.vgchartz.com/article/459236/starfield-tops-12-million-players/

Could still edge in another million before years end but I’m not really expecting it to get further than the bottom bracket unless they find a way to stop hemorrhaging players.