The idea of the Primes did not appear all at once. In the classic cartoon "Prime" is simply the title of the Autobot leader. Only in the 2000s did comic writers and Hasbro designers start building a mythology: if Cybertron has a creator god, Primus, someone had to be the first beings he made. That is how the Thirteen were born — the first generation of Transformers, half-legendary figures from whom all others descend.
How they were created
In the most widespread version, the so-called Aligned universe (the Prime cartoon, the War for Cybertron games, the book The Covenant of Primus), Primus creates the Thirteen to help him in his eternal war with Unicron, the devourer of worlds. Each Prime receives a role and a signature artifact. Together they defeat Unicron, but then another, internal story begins — about power, envy and memory.
Who is who
Prima is the first leader and first bearer of the Matrix of Leadership. Vector Prime guards time and space. Alpha Trion is the chronicler who keeps history. Solus Prime is the smith who forged most of the legendary weapons. Micronus Prime is the first Mini-Con and the group's conscience. Nexus Prime is the first combiner. Onyx Prime is the first beast Transformer. Amalgamous Prime is the first who could change shape at will. Quintus Prime is a scientist able to create life. Alchemist Prime studies the nature of matter. Liege Maximo is the "Prime of lies", a master manipulator. Megatronus is the guardian of entropy. And the Thirteenth is a mysterious figure tied to the Matrix, described differently by different stories.
Megatronus and the first betrayal
The Primes' most important storyline is the fall of Megatronus. He turns on his siblings, Prima dies in the fighting, and afterwards his name is struck from history and he is known only as The Fallen. That is the villain audiences meet in Revenge of the Fallen (2009). Here lies a detail fans ask about constantly: in several versions the gladiator Megatron deliberately takes the name Megatronus — the most famous rebel in Cybertron's history. The villain's name literally becomes his manifesto.
The Primes in modern stories
The animated Transformers One (2024) brings Prime mythology to the big screen: young Orion and D-16 discover that the ruler Sentinel Prime hid the truth about the fate of the Thirteen. And the Age of the Primes toy line (2025) released many Primes as figures for the first time — discussion of those figures is one of the hottest topics in the fan community.
Why it matters
The Primes give the Transformers universe something most sci-fi franchises lack: a mythology of its own, with a fall from grace, a lost legacy and the promise that heroism can be inherited. Every new Optimus carries a piece of Prima, and every new Megatron the shadow of Megatronus. Understanding the Primes helps you understand the franchise's central conflict.
