A strange little side quest
Here is a rabbit hole for the next loading screen in Marksmen: Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. The timeline takes another interesting turn: Nintendo's Donkey Kong arrived in 1981 and introduced the character first known as Jumpman, who later became Mario. So a round of Marksmen is not just a quick distraction; it is a tiny stop on a much longer action games timeline.