Name: Kuat Drive Yards All Terrain Armored Transport (AT-AT)
Type: Assault walker
Scale: Walker
Length: 20 meters
Height/depth: 22.5 meters
Skill: Walker operation: AT-AT
Crew: 5, Pilot (1), Gunner/co-pilot (1), Commander (1), Deck officers (2)skeleton: 3/+10
Crew Skill: vehicle blasters 5D, walker operation 5D
Passengers: 40 (troops)
Cargo Capacity: 1 metric ton (Speeder bikes (5))
Cover: Full
Cost: Not available for sale
Move: 21; 60 kmh
Body Strength: 6D
Weapons:
        2 Taim & Bak MS-1 fire-linked heavy laser cannons (fire-linked)
                Fire Arc: Front
                Crew: 1 (co-pilot or commander)
                Skill: Vehicle blasters
                Fire Control: 2D
                Range: 50-500/1.5/3 Km
                Damage: 6D
        2 Piperii-Cerlurn R-90C medium blasters (fire-linked)
                Fire Arc: Front
                Crew: 1 (co-pilot or commander)
                Skill: Vehicle blasters
                Fire Control: 2D
                Range: 50-200/500/1 Km
                Damage: 3D

Game Note: The AT-AT walker’s head is mounted on a pivoting neck, which can turn to face left, front and right fire arcs. An AT-AT may move its head one fire arc per turn (from left to front, right to front, front to right, or front to left).

Background: The All Terrain Armored Transport (AT-AT) was a four-legged combat walker of the All-terrain vehicle line used by the ground forces of the Galactic Republic, Galactic Empire, and the First Order. Along with the Imperial-class Star Destroyer, stormtroopers, and the TIE fighter, it was one of the most famous symbols of the Empire's military might.

This model was used during the Galactic Civil War. This variant was shorter than the early model, and featured dual Piperii-Cerlurn R-90C medium blasters located on the sides or "temples," and a pair of Taim & Bak MS-1 fire-linked heavy laser cannons mounted on the "chin."

Around the time of the Battle of Yavin, a new AT-AT model was introduced. At this time, the Alliance to Restore the Republic stole a number of AT-ATs and provided them to Saponza's Gang.

During the Rebel assault on the Imperial weapons factory moon of Cymoon 1, a group of Rebels led by Han Solo and Leia Organa stole an AT-AT from Weapons Factory Alpha. They used the walker to escape from the factory after they sabotaged its main power core to explode. During their escape, Solo fired a shot that nearly killed the Sith Lord Darth Vader, using all the AT-AT's powerful armaments. Soon after, Vader managed to overtake the Rebels in their escape and cut down the massive walker's back left leg. The AT-AT fell tremendously and its passengers barely escaped the wreckage before fleeing Cymoon 1 entirely for the safety of the Alliance Fleet.

During the Battle of Hoth, General Maximilian Veers led a squadron of at least five AT-ATs on the icy fields of Hoth to knock out the shield generator that protected Echo Base, the Rebel headquarters. The triumph of Veers' squadron allowed the Imperials to invade Echo Base and rout the Rebels, striking a major blow in the war. However, the battle also revealed that the AT-ATs could be toppled by a cable wrapped around their legs. Although that weakness had been used effectively by the Alliance on Hoth, the Empire continued to use these mechanical behemoths in the later stages of the war, and at least 1 was present on Endor prior to the Battle of Endor.

Shortly after the Battle of Endor, the rogue agents of Inferno Squad Iden Versio and Del Meeko used an AT-AT in order to escape Vardos, during Operation: Cinder. In 5 ABY, at least one AT-AT walker was stationed at Camp Sardo on the planet Kashyyyk. During the Liberation of Kashyyyk, several Wookiee guerrilla fighters, including Kirratha, hijacked the AT-AT walker and threw out the crew. Later, AT-ATs were deployed against New Republic forces during the Battle of Jakku.