What are games to play from a Linux terminal?

Who never procrastinated and played games instead of writing a paper, finishing a report, or looking after the kids? Absolutely no one. But when Linux users procrastinate, they procrastinate in style: while playing from the terminal! We tend to forget, but at first a graphical interface was not necessary for a good game. And thanks to open-source and the community, many arcade and other good games were ported to be played from within a terminal, without an X server running. It would be impossible to list them all, but let me present ten of these games that particularly appealed to me personally.