Could you please add Slavs in the next version of 0 A.D.?
I realize that Slavs are a very broad term, but you can use the Slavs from AoE2 DE as a starting point.
The civilization should focus on strong Melee fighters, especially cavalry. Boyars, Cataphracts, heavily armored infantry.
Economically, Slavs are not great even in modern times, but some Metal working bonus could apply. Slavs historically had great knights.
I realize that this is a game of ancient warfare, but I don't think we should strictly hold onto that period. Age of Empires 2 already broke the historical setting they're in, so why stick to it like "pijan plota", as we southern Slavs like to say.
I can answer some of your questions or add more info related to the names of buildings and units. Also, Slav mythology is great and very fun, you could draw some of inspiration from it. For example, our heroic knights are called "Zmajevi" (Dragons).
Some actual heroes:
1) Časlav Vlastimirović (Часлав Властимировић), Serbian ruler.
2) King Simeon I (Симеон I), Bulgarian.
3) Prince Rurik (Рурик), Kievan Rus.
Thank you for making this awesome game!