Age of Empires
Cataphract

Age: Iron

Prerequisites: First build a Town Center, build a Barracks, build a Stable, research Cavalry, upgrade to Heavy Cavalry, research Metallurgy, then finally upgrade to Cataphract.

Upgrade Cost: 2000 Food, 850 Gold

Cost: 70 Food, 80 Gold

Armor: 3

Piercing Armor: 1

Range: 0

Attack: 12

Hit Points: 180

Speed: Fast

Upgrade of: Heavy Cavalry

Get From: Stable

Special: +5 attack against infantry; +1 piercing armor against Ballista, Helepolis, and Missle Weapons.

The Cataphract is the ultimate cavalry unit. It has more attack strength and armor than the Heavy Cavalry. You must research Metallurgy before you can upgrade to Cataphract. Other cavalry units include the Scout, Cavalry, the War Elephant, and the Chariot.
Researching Leather Armor, Scale Armor, and Chain Mail increase armor. Toolworking, Metalworking, and Metallurgy increases attack strength. Nobility increases hit points.