Due to the borked map file encryption for African maps, Linux/Proton users are unable to use them/play multiplayer

Age of Empires III: DE III - Report a Bug
21

As always, trust the Linux Community to make it work.

Classic.

22

Any success on fixing this for Mac?

23

Bumping this ish fr fr I’d like to actually play the African and Mexican DLC stuff.

24

This issue has been resolved on Proton 7.

25

Not sure if I can do that as I’m running the game via CrossOver.

Multiplayer works though.