I don't like competitive games: I don't get a kick out of winning, but I really don't like losing.
I also don't like co-operative games.
I like Sudoku and Rust, though.
Sudoku is good for making my brain calm down for bed, after Rust has put it through a wringer.
@liw For android, some puzzles including sudoku https://f-droid.org/en/packages/name.boyle.chris.sgtpuzzles/
Lars and friends