OK, I’ll recommend you a few that are all open source, simple, free, with no ads, and should be handled by just any phone. You can find the games in f-droid between other places.
For those that are into crosswords: Forkyz
A slightly different take on sudoku style game: Gauguin
A game to place pieces removing full lines both vertically and horizontally, kinda like Tetris but pieces are not falling and you just put them wherever you want: 1010! Klooni
A tower defense game using hand drawn graphics: Anuto TD
And one I have from the play store, not open source, that is a clone of minesweeper, called… Well you can guess it: Minesweeper for android
All of those I have used on my own device and have worked great, definitely good time killers if you are into any of those kind of games.



Well, not to side with the fascist shithead, but you know, “broken clock…”. The thing is, camera vision is kinda enough… It’s an entirely different thing if it could be better, improved, safer, or whatever by adding LiDAR or other tech…