Foundry

The Foundry plays a vital role in improving your metal output by increasing the yield of mines in its host city. Not only can the Foundry be enhanced further to improve this aspect, but it also hosts supply research which increases the logistical support available to your troops in the field.

The Mitanni, Gaul and Germans (RoA) can construct Foundries without requiring any Technological upgrades, making them highly efficient in the accumulation of resources from the early game.

Upgrades

Metallurgy

In Rise of the Ancients,

• Level 1 (Metal Alloys) is blocked for .
• Tier 2 (Advanced Metalsmithing) is restricted to .
• Level 3 (Ironworking) is restricted to .

Because of these restrictions, Heavy Rams can't be built.

NAME	GRANTS ACCESS TO	COST and REQUIREMENTS	UNLOCKS
Metal Alloys	"And all the pins of the tabernacle, and of the court round about, were of brass." —Exodus (38:20) Prereqs: Foundries increase output of mines in host cities by 100% Required to create sword units: Swordsmen, Guardsmen, Kladibiakoi, Foot Maryannu	250; 250 Time to complete: Medium	31px
Advanced Metalsmithing	"— a blast for the heavy work, a quick breath for the light, all precisely gauged" —The Iliad (Cap XVIII) Prereqs: ; Foundries increase output of mines in host cities by 150%	350; 350 Time to complete: Rather long
Ironworking	"Iron can destroy anything: families, fortunes, governments,whole countries. It's the most powerful stuff in the universe. [...] Without weapons — without this — there are no big armies." —John Jakes, North and South (Cap 5) Prereqs: [3] Foundries increase output of mines in host cities by 200%	450; 450 Time to complete: Rather long	Heavy Ram

Logistics

In Rise of the Ancients,

• Level 1 (Foraging) is blocked for
• Level 2 (Baggage Trains) is blocked for Indians,
• Level 3 (Mass Manufacturing) is restricted to Egypt Babylon Phoenicians

Because of these restrictions, Heavy Rams can't be built.

NAME	GRANTS ACCESS TO	COST and REQUIREMENTS	UNLOCKS
Forage	"Bring war material with you from home, but forage on the enemy." —Sun Zi, Chinese military strategist Prereq: . Temple. Research cost cheaper and research speed improved by 10% Increased LOS	150; 80
Baggage Trains	"The chiefs, the captains of infantry, the nobles, I caused to equip the river-mouths, like a strong wall." —Ramses III Prereqs: Increased LOS	230; 150	Baggage Train
Mass Manufacturing	"Over-abundance causes perplexity." —Taoist saying Prereqs: Low-level crops and lumber upgrades in Granary and Sawmill. Research cost cheaper and research speed improved by 10% Increased LOS	230; 350