Do game pass games come back?

gamepass is like netflix, they add new content and some content leaves, it is entirely up to the devs usually on how long it stays on gamepass.

They have sections that tell you whats leaving and when and whats coming in and when.

Some games have left and then returned, but there's no way to know if that would be the case for any particular games.

Note that if you find the game on sale or purchase it on disc, your save files will still work and you can continue where you left off when you played via Game Pass.

There have been a couple that have returned in the past, but there's no way to know for sure if/when a certain game will come back.

I think games do occasionally come back. From what I remember some of the new Tomb raider games have come to game pass, left, and came back a few months later. But don't quote me on that. The best way to stay up to date on what's going on with game pass
would be at the official website. https://www.xbox.com/en-US/xbox-game-pass