Hello,
I request a week ago the Algerian Arabic language on Transifex but it was not accepted. I'm surprised because Algerian Arabic is very different from standard Arabic and from Eastern Arabic dialects (Saudi, Iraqi and Egyptian which are present in the 0 A.D. Transifex page). It's written on the Wiki that "As we prefer to avoid duplicate work, new languages are only accepted when they differ from existing languages. [...] there are big differences between the Portuguese in Brazil vs Portugal, so we allow the "pt_BR" language."
I would to say that Brazilian and European Portuguese, even if they are different languages, are mutually intelligible, that's not the case of Algerian Arabic and standard Arabic: "Watson writes ”Dialects of Arabic form a roughly continuous spectrum of variation, with the dialects spoken in the eastern and western extremes of the Arab-speaking world being mutually unintelligible”. Effectively, while middle easterners can generally understand one another, they often have trouble understanding Maghrebis..." from https://hal.archives-ouvertes.fr/hal-00727042/document.
We can say in comparison that Brazilian and European Portuguese are as different as Algerian and Moroccan Arabic. Mostly because Maghrebi Arabic languages were and are influenced a lot by Latin, Berber and Romance languages; mostly by French, Spanish (Morocco, Tunisia, Mauritania) and Italian (Tunisia and Libya).
For these reasons, I think that Arabic Algerian, and more generally any Maghrebi languages, would be accepted in 0 A.D.'s Transifex.
Thanks for reading my post.