A strange little side quest
There is a neat bit of history hiding behind the kind of play you find in Ancient Planet. Humans did not see the Moon's far side until a Soviet spacecraft flew past it in 1959. The timeline takes another interesting turn: Chess changed dramatically in Europe during the 15th and 16th centuries when the queen became the board's most powerful piece. That is the kind of background detail that makes another attempt at Ancient Planet feel a bit more connected to the history of play.