As previously discussed, people can find and play the game themselves relatively easily, if they really want to. I was thinking more along the lines of how to make people want to find and play and appreciate it. Maybe by spreading some Civ 1 memes or something? Like, say, a screenshot of a battleship attacking a phalanx on shore with a 'Sid Meier's 30 years war' caption below. This will probably only work on people who are already familiar with the series and it's peculiarities, but Civ also influenced a lot of other games, like Age of Empires, so maybe some crossover points can also be found. I might try and throw some jokes together later. We could even make a short youtube video dedicated to the anniversary, but that would involve quite a bit more work.