There is a site called “Illuminati Game Revealed,” which details secret messages and imagery some people feel they’ve discovered in the Illuminati: New World Order card game. It’s hosting extensive archives of the game art, noting, “These cards, most likely, were made by Steve Jackson and staff, who had an extensive knowledge of Freemasonry, the occult, blasphemies to The Lord Jesus Christ, and occultic practices and groups. We hope to expose and correct them (Ephesians 5:11), in light of The Word of God, The Holy Bible.”
Also, here’s a two-month-old thread from Reddit of people talking about the game and its card art.
People have called the game ahead of its time. The truth is it was only a product of its age.