Verified answer

I have the entire list of Gundam ever made; it has the manga, anime, and movies on it. Sorry if it's extremely long. Plus there is actually a new Gundam coming out called Moblie Suit Gundam: Unicorn.

Gundam comes in different centuries or alternate universes the main one is Universal Century.

Universal Century (U.C.)

U.C. 0079

Zeonic Front (video game, novel)

Mobile Suit Gundam

Mobile Suit Gundam I, II, III

The 08th MS Team

The 08th MS Team: Miller's Report

Cross Dimension 0079 (video game)

Lost War Chronicles (video game, comic, novel)

The Blue Destiny (video game, comic, novel)

Side Story 0079: Rise From The Ashes (video game, novel)

Encounters in Space (video game, comic)

Gundam 0080: War in the Pocket

Gundam The Ride: A Baoa Qu (theme-park ride)

U.C. 0083

Gundam 0083: Stardust Memory

Gundam 0083: Last Blitz of Zeon

U.C. 0087

Zeta Gundam

Green Divers (theatrical presentation)

U.C. 0088

Gundam Sentinel (novel, photo-novel)

Mobile Suit Gundam ZZ

U.C. 0090

Double Fake (comic)

U.C. 0093

Char's Counterattack

U.C. 0105

Hathaway's Flash (novel)

U.C. 0120

Mobile Suit Gundam F90 (comic)

U.C. 0122

Formula Wars 0122 (video game)

U.C. 0123

Silhouette Formula 91 (comic)

Mobile Suit Gundam F91

U.C. 0133

Crossbone Gundam (comic)

U.C. 0153

Victory Gundam

U.C. 0203

Gaia Gear (novel, radio drama)

U.C. 0223

G-Saviour

Future Century (F.C.)

F.C. 60

G Gundam

After Colony (A.C.)

A.C. 187

Gundam Wing: Episode Zero (comic)

A.C. 195

Gundam Wing

Gundam Wing: The Last Outpost (comic)

A.C. 196

Gundam Wing: Blind Target (comic, radio drama)

Gundam Wing: Battlefield of Pacifists (comic)

Gundam Wing: Endless Waltz

Gundam Wing: Endless Waltz Special Edition

After War (A.W.)

A.W. 0015

Gundam X

Cosmic Era (C.E.)

C.E. 71

Gundam Seed

Gundam Seed Astray

C.C. 2345

Turn A Gundam

Well as it is only the U.C needs to be really watched in order.

http://tvtropes.org/pmwiki/pmwiki.php/Anime/Gundam...

the above site may help