As noted in the original theme song, the Transformers ... various city-states on Cybertron gradually came into conflict with ...

The Energon Universe ... to the larger Transformers franchise were minor at first, Void Rivals story has grown to such a degree that it encompasses the origin of Cybertron itself.

which allowed energon —the Transformers’ sustenance —to flow across Cybertron. However, the Matrix was lost when the Primes —the Transformers’ leaders —died in a battle against the Transformers’ ...