A strange little side quest
There is a neat bit of history hiding behind the kind of play you find in Zombie Dating Agency. The Moon orbits Earth at an average distance of about 385,000 kilometres, and surface gravity there is roughly one-sixth as strong as Earth's. The broader history adds one more wrinkle. The first crossword puzzle book appeared in 1924 in a cautious initial printing of 3,600 copies, complete with a free pencil. That is the kind of background detail that makes another attempt at Zombie Dating Agency feel a bit more connected to the history of play.