cross-play exists only between platforms in the same box (variation)
cross-play info is taken only from OFFICIAL resources, follow the link and check by yourself:support.ageofempires.com
Age of Mythology: Retold support cross-play feature, that means you can play together with people on different gaming platforms.
On Crosswatch cross-play are grouped by variations, and you can play together ONLY between platforms in the same variation:
Yes! Age of Mythology: Retold supports cross-play, but only with specific variations:
Please look at Age of Mythology: Retold Crossplay Explaining to get more details about other platforms.