A strange little side quest
One reason strategy games keeps producing good game ideas around Supremacy 1914 is that its history is full of strange turns. Games resembling checkers were being played thousands of years ago; evidence of related games reaches back to around 1600 BC. A second detail makes the picture even better: Nintendo's Donkey Kong arrived in 1981 and introduced the character first known as Jumpman, who later became Mario. Grombi files that under: small game, surprisingly large backstory.