A Feudal Age opening where you build one or two Archery Ranges and keep producing Archers. Fletching at the Blacksmith (+1 range, +1 attack) is close to essential for this plan.
Archers are cheap for the damage they deal and can attack villagers from range, but they need gold, so the player has to mine gold early. They lose to Skirmishers, which cost no gold, and to Mangonels once the Castle Age arrives.