RAIDERS AND TRADERS (The Chaosium, 1979)
http://www.waynesbooks.net/?page=shop%2Fflypage&product_id=352654&keyword=raiders&searchby=title&offset=0&fs=1

Each player takes the part of a rival noble house in Bronze Age Greece, and vies for supremacy with other players through trade, alliances, and war.
This game was made by Chaosium, back when it was “The Chaosium.” Never played the game, but I keep a copy in my personal collection, because someday I intend to run a fantasy campaign using that huge, absolutely gorgeous map of ancient Greece!

And I also keep around these RPG sourcebooks for that campaign:

AD&D “AGE OF HEROES” Campaign Sourcebook
http://www.amazon.com/exec/obidos/ASIN/1560768142/ref=nosim/waynesworldof-20

Rolemaster “MYTHIC GREECE: The Age of Heroes”
http://www.amazon.com/exec/obidos/ASIN/1558060022/ref=nosim/waynesworldof-20