Age of Mythology: Retold
62 Achievements
Steam
New World, New Gods
Complete the first mission of the New Atlantis campaign.
18.4%
How to unlock the New World, New Gods achievement in Age of Mythology: Retold - Definitive Guide
A small point for all those wondering: It seems all achievements for finishing certain parts of a campaign do not unlock until you leave for the main menu. Confused me when I played right through eight scenarios until some of them popped.