https://www.gamespot.com/articles/e3-2018-assassins-creed-odyssey-deserves-a-discove/1100-6459832/

Of all the changes Assassin's Creed Origins introduced to the formula, the smartest may have been the post-launch addition of a Discovery Tour mode. The series has always been firmly rooted in history, but its tendency towards the fantastical--Leonardo Da Vinci making assassin gadgets and the like--often overshadowed the time and effort Ubisoft has put into its historical research. Discovery Tour shone a bright spotlight on all the work the studio put into researching ancient Egypt, and now a year later, Assassin's Creed Odyssey deserves the same treatment.

A lengthy E3 2018 demo was littered with historical details. The costuming and fashion appeared period-appropriate and correct down to the rope used for tying off armor or braids. The architecture was gorgeously recreated to show how the still-standing ornate structures of ancient Greece would have appeared minus 2000 years of wear and tear. The characters casually reference the gods with a precision that represents a people who regarded this as religion, not superstition.