A strange little side quest
Save Earth has plenty of company in a long tradition of players chasing timing, patterns and better decisions. Our solar system formed about 4.6 billion years ago from a cloud of gas and dust collapsing under gravity. That is only half the story. Games resembling checkers were being played thousands of years ago; evidence of related games reaches back to around 1600 BC. That history is one reason familiar mechanics can still feel new when they are recombined well.