Mobile Suit Gundam (機動戦士ガンダム, Kidō Senshi Gandamu) began as a 1979 Sunrise TV series directed by Yoshiyuki Tomino and became, after initial commercial difficulty, the founding work of the real-robot subgenre and the foundation of one of the most commercially central anime franchises. Forty-plus years of subsequent series and films span multiple distinct timelines, and the franchise's parallel commercial life through Bandai's Gunpla plastic-model kits is among the largest single product lines in the international toy industry.
The 1979 series and its near-cancellation
The original Mobile Suit Gundam broadcast on Nagoya Broadcasting Network from April 1979. Initial ratings were below sponsor expectations and the series was cut from its planned 52 episodes to 43. Reruns and a 1981–1982 theatrical re-edit trilogy (Gundam I, Soldiers of Sorrow, Encounters in Space) accumulated the audience that had not watched the original broadcast and turned the series, in retrospect, into a cultural fixture.
The Universal Century and alternate timelines
Most original Gundam media is set in the Universal Century (UC), an internally consistent fictional history that begins with the original 1979 series and extends through subsequent sequels: Zeta Gundam (1985), Gundam ZZ (1986), Char's Counterattack (1988 feature), Gundam F91, Victory Gundam, Gundam Unicorn (2010–2014), and Gundam Hathaway (2021). Parallel 'alternate universe' series — G Gundam (1994), Gundam Wing (1995), Gundam SEED (2002), Gundam 00 (2007), Iron-Blooded Orphans (2015), The Witch from Mercury (2022) — are set in their own continuities.
Gunpla and the toy economy
Bandai began producing 1/144- and 1/100-scale plastic-model kits of Gundam mobile suits in 1980. The product line — branded Gunpla (ガンプラ, an abbreviation of Gundam plastic model) — has expanded continuously and is now a substantial revenue stream in its own right. The Gundam franchise's overall commercial scale is built as much on Gunpla as on broadcast revenue, and the franchise's continuous production of new TV series is partly motivated by the need to introduce new mobile-suit designs that Bandai can productise.