Generation One: The series that started it all. Located in the Primax Cluster of the Multiverse, two warring factions brought their war to Earth in search of their precious fuel Energon to preserve their way of life. The series later evolved to include beasts and travel back in time to prehistoric Earth and continue the battle. Robots In Disguise (2001): Located in the Viron Cluster of the Multiverse, this series premiered in 2001. It follows Megatron and his Predacons searching the Earth for Cybertronian artifacts under the protection of Optimus Prime. Unicron Trilogy: Located in the Aurex Cluster of the Multiverse. Universe (2003): Covering a vast majority of the Multiverse celebrating the history of Transformers. This series used current molds from different series with updated names from past eras. Alternators: Licensed authentic 1/24th scale model Automobiles that started in late 2003 with inner robots of Generation One characters that featured opening hoods, doors, and trunks while still being able to transform into robots. Masterpiece: An adult designated line of figures with complex engineering primarily based upon Generation One characters and later expanding to other universes. Generations: Considered a "best of" of the franchise ranging from updated Generation One figures to brand new characters. This "series" began with the Classics line in late 2006 and continues today with the War For Cybertron Trilogy. Titanium Series: Covering a vast majority of the Multiverse in 3 inch non-transforming figures and 6 inch transforming figures. Live Action Movies: Located in the Tyron Cluster of the Multiverse. Animated: Located in the Malgus Cluster of the Multiverse. Aligned Prime: Located in the Uniend Cluster of the Multiverse. Covers Transformers: Prime to Robots in Disguise (2015) Cyberverse: Premiering in late 2018, this series focuses on Bumblebee trying to regain his memories with the aid of Windblade. This series aims to the younger generation of fans. Botbots: When a mysterious cloud of Energon falls upon a shopping mall, everyday household items and food transform into mischiefvious robots in disguise. Convention Exclusives: Exclusive robots from the various conventions throughout the year.