I think they relate the team that made that mod with 0 AD or with some mod that inspired that development.
I don't remember that mod. But the original Wildfire Games team made a mod called Rome at War, which is what modern AoE II mods are inspired by.
This isn't the first time we've been linked to that team of modders.
It's called the same as the one from Wildfire games.
It's normal that they think of us with this DLC.
The mod is inspired by the mod that brought 0 AD to life.
WildFire Games has released quite possibly the largest mod for "Age of Empires II: Age of Kings", featuring the replacement of the Mesoamerican civilisations of the Aztecs and the Mayans with the Romans and Greeks. With over 13,000 downloads and featured on the cover disks of PC Powerplay from Australia and GameStar from Germany. Both are leading gaming magazines. Now you too can build an empire on the backs of your enemies!
March your soldiers up and down the Rhine, across the sands of North Africa, through the Grecian city-states, along Hadrian's Wall, and patrol the shores of the Mediterranean Sea as you subdue all who stand in your path. Can you build an empire to equal Augustus and Caesar? Will your name be immortalised on busts of marble and triumphal arches?
https://steamcommunity.com/sharedfiles/filedetails/?id=2404179025
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Rome at War' is the oldest mod on the list (dating from 2001), being one of the most complete in its day. It draws attention, more than for its content, for its origin, since from here came the Wildfire Games team, to whom we owe the best spiritual heir of the saga: '0 A.D.', the free 'Age of Empires'.
https://www.google.com/amp/s/www.vidaextra.com/listas/mejores-mods-age-of-empires-ii-vampiros-senor-anillos-star-wars/amp
The team of the new game(mod) is different.
Romae ad Bellum ("Rome at War") is a fan-made total conversion mod for Age of Empires II: Definitive Edition developed by TheConqueror753 and Caesar3842, first released on September 11, 2021. Though it shares the name of the "Rome at War" mod for Age of Empires II: The Conquerors, it is independently created and has a greater scope. It is based on civilizations of the classical antiquity period, spanning roughly from 500 BC to 500 AD.
The authors of this mod were also a part of the CaptureAge team who worked on Chronicles: Battle for Greece, which was inspired by this mod.
https://ageofempires.fandom.com/wiki/Romae_ad_Bellum