As many of you already know, the Tranformers stories occur in many different Universes making up one Multiverse. Well I'd like to help clear up confusion by compiling a list of all the Universes we know of, as well as what stories are included. If there are any mistakes or anything I missed, please let me know. The A Universes are ones that the animated cartoons take place in, the C Universes being the comics, and the V, N, and M Universes being Video Games, Novels and Movies respectively. Universe A1 The Original Cartoon & Movie Headmasters, Masterforce, Victory, and Zone G2 (Episodes of G1 Reaired) Beast Wars & Beast Machines Beast Wars II & Beast Wars Neo The Wreckers Convention Comics DW's MTMTE Bios The Transformers: Universe Convention Comics IDW's Beast Wars Comics Beast Wars Generations Comics Universe A2 Robots in Disguise Universe A3 Armada, Energon, & Cybertron Universe A4 Transformers: Animated Universe C1 Marvel's US and UK Comics Marvel's G.I. Joe Comics & G.I. Joe / Transformers Crossovers The Headmasters Comics Marvel's TF Universe Bios The G2 Comics IDW's Generations & Other Reprints Universe C2 Marvel's Adaptation of the Animated Movie Universe C3 Dreamwave's G1 Comics The War Within Comics DW's Micromaster Comics The trilogy of novels, Hardwired, Annihilation, and Fusion Universe C4 The Armada / Energon Comics The Armada MTMTE Bios Universe C5 DW's Transformers / G.I. Joe Comics Universe C6 Devil's Due's G.I. Joe vs Transformers Comics Universe C7 IDW's Infiltration, Stormbringer, Escalation, & Devastation IDW's Spotlight Comics Megatron: Origin Universe C8 IDW's Evolutions: Hearts of Steel Universe C9 IDW's Adaptation of The Animated Movie Universe C10 IDW's Prequel and Adaptation of the Live Action Movie The Upcoming "Rise of Starscream" Universe C11 Transformers: Cybertron: Balancing Act Universe M1 The Live Action Movie and it's Upcoming Sequels The Novel, Ghosts of Yesterday Universe V1 The Japanese Only TF: Tatakai Game for PS2 Universe V2 The Armada Based PS2 Game Universe V3 The Movie Based Game Universe V4 Transformers: Autobots for DS Universe V5 Transformers: Decepticons for DS Other Known Universes In the Armada Comics, Unicron sends a group of Decepticons from a Universe that we never see, but we can assume it's not one of the existing known universes. In the Armada Comics, Optimus Prime gets lost in an alternate Universe that was destroyed by Unicron. It is unknown if this is the same one that Galvatron, Bludgeon, etc were from, but it could be assumed the badly damaged Optimus Prime recovered was from this Universe. At the end of the Balancing Act comic, Skyfall is sent to another Universe where we get a glimpse of a "classics" style Megatron. Notes: The Cybertron cartoon does not appear to be in the same Universe as Armada and Energon because the Unicron Singularity had a devastating effect on the fabric of spacetime. This caused all the differences. Also, Cameos by Rad and Kicker in the last episode do imply this is the same Universe. The Balancing Act comic features Vector Prime, the very same one shown in the Cybertron Cartoon in Universe A3. Other Autobots from this Universe also make an appearance later in the comic. Also, the Optimus Prime and Ultra Magnus from Universe A2 show up to help after having helped Optimus Primal in Universe A1.