A strange little side quest
Here is a rabbit hole for the next loading screen in Pirate Galaxy: Games resembling checkers were being played thousands of years ago; evidence of related games reaches back to around 1600 BC. The broader history adds one more wrinkle. Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. It is a good reminder that simple game mechanics can carry a surprising amount of history.