After War Gundam X was released in 1996 depicting a post-apocalyptic setting within the “After War” timeline, following fifteen years after the 7th Space War between the United Nations Earth and Space Revolutionary Army destroying much of the Earth. The series follows protagonist Garrod Ran as he joins the crew of the Frieden in their mission to rescue Newtypes from being exploited in this chaotic time, while a new United Nations Earth government is being established, fanning the flames of war once more.
The mechanical designs were a joint effort by Xenogears‘s Junya Ishigaki and the original Gundam mechanical designer Kunio Okawara. Despite some mobile suits such as DT-6800A Daughtress and RMS-006 Jenice were designed akin to the GM and Zaku, Ishigaki approached the mobile suit designs with the mindset of “a style that can’t be tied to First Gundam”. A similar approach he had adopted working on Mobile Suit Victory Gundam, thus designed mobile suits based on the needs of the users.
Other mobile suits I
Other mobile suits II
Nobuyoshi Nishimura served as character designer for the series. Nishimura worked in animation for several Gundam entries such as Mobile Suit Gundam F91, Mobile Suit Victory Gundam, and Mobile Fighter G Gundam. He was also working as animation director for the previous Gundam entry at the time, New Mobile Report Gundam Wing. Production began on Gundam X in tandem with Gundam Wing in late December 1995.
Source: After War Gundam X DVD Memorial Box Booklet Archives