Outer Wilds. (Not to be confused with Outer Worlds which came out around the same time.) While the game is non-violent in that you never actively harm anything, your character will die, a lot, in maybe concerning ways (crushed, out of air, crashed, etc). It also has a story with themes that may be over your kids’ heads. Look up reviews to see more.
It does contain spoilers but the games creator wrote a masters thesis on this game[1].
[1] https://digitallibrary.usc.edu/Share/o7d2vbuapqgd2mkjke8j752...