My kids have been enjoying this online remake of LodeRunner. [0]

It's fun because I have fond memories of playing it on the Macintosh Classic II as a kid.

They like making custom levels for each other, just like me and my siblings used to do.

I was also happy to find an ad-free Minesweeper remake on Simon Tatham's Portable Puzzle Page. [1] They like the maps game from that page as well.

[0] https://loderunnerwebgame.com/game/

[1] https://www.chiark.greenend.org.uk/~sgtatham/puzzles/