A strange little side quest
Between one round of Squid Game Bullet 2D and the next, this is worth knowing: The first crossword puzzle book appeared in 1924 in a cautious initial printing of 3,600 copies, complete with a free pencil. Another piece of context lands nicely beside it: Space Invaders arrived in 1978 and helped turn electronic games from an arcade curiosity into mainstream entertainment. That history is one reason familiar mechanics can still feel new when they are recombined well.