I enjoy puzzles a lot, so Simon Tatham's Puzzles. You get 40 puzzles at the price of 9 MB, including some classics like Sudoku, Minesweeper and Picross.
It's these puzzles, if you'd like to test drive on a desktop PC: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/
I enjoy puzzles a lot, so Simon Tatham's Puzzles. You get 40 puzzles at the price of 9 MB, including some classics like Sudoku, Minesweeper and Picross.
It's these puzzles, if you'd like to test drive on a desktop PC: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/
I have blown so many hours on Towers.