

Pharaoh/Cleopatra includes somewhat detailed descriptions of life in ancient Egypt in context of the gameplay. You have a beer production chain; the game has a short outline of beer in ancient Egypt.
It has great gameplay too that stands the test of time.
I’ve never heard of the game designer mentioned in the article or of Katamari, just wanted to mention that it must be nice having that kind of creative freedom.
His latest game doesn’t look like it’s for me, but the concept sounds original.