Transformers

Transformers is a media franchise produced by American toy company Hasbro and Japanese toy company Takara Tomy. It primarily follows the heroic Autobots and the villainous Decepticons, two alien robot factions at war that can transform into other forms, such as vehicles and animals. 

The franchise began in 1984 with the Transformers toy line, comprising transforming mecha toys from Takara's Diaclone and Micro Change toylines rebranded for Western markets.

Generation 1 covers both the animated television series The Transformers and the comic book series of the same name.

Generation 2 comic book and Beast Wars TV series, which became its own mini-universe. 

Armada, Energon, and Cybertron that constitute a single universe called the "Unicron Trilogy".

A live-action film series started in 2007

Aligned Continuity was established. In 2018, Transformers: Cyberverse debuted.