Realm of the Primes

The Realm of the Primes is a place from the Robots in Disguise portion of the Aligned continuity family.

The Realm of the Primes is an ethereal plane somewhere. Members of the Thirteen can reshape it to their will.

Fiction

2015 Robots in Disguise cartoon

After becoming one with the AllSpark, Optimus Prime ended up in the Realm of the Primes where he began training to face an impending threat, Out of Focus though the Primes allowed him to appear in the material world when Bumblebee's need was dire. W.W.O.D.? Micronus was able to create a hill and manifest humans and a robot foe for Optimus to fight. Out of Focus

Ask Vector Prime

During his campaign against Mogahn the Mass, Vector Prime (who had long ago self-induced amnesia in order to protect the location of Nexus Prime's components) ended up in the Realm of the Primes. There, five of his siblings unlocked his memories as Primus's appointed guardian of space and time. Rejuvenated, Vector Prime returned to normal space and vanquished the Mass once and for all. However, Vector Prime was uncertain of how exactly these events had occurred due to his competing memories from the Uniend cluster.

After hijacking Vector Prime's Axiom Nexus News column, known liar Sideways stated that he once broke into and messed up Megatronus's hiding place in the Realm of the Primes. Ask Vector Prime