Overspace

Overspace is an extra-dimensional plane that transwarp technology uses to travel through space and time. At least one transwarp device causes taxation on a Transformer's energies with travel through overspace.

Fiction

3H comics

Unicron's destruction from Rodimus Prime opening the Matrix of Leadership tore a hole in overspace and deposited the Dark Essence on prehistoric Earth. Paradox

Cataclysm, Herald of Shokaract, feared travelling using transwarp, as he believed his component particles would disperse to overspace and be lost forever. Antagony, another Herald, travelled through overspace to retrieve an artifact from the Beast Wars. The journey took much out of her, and she was captured by Megatron in a moment of weakness. Herald

After Antagony's disappearance, Cataclysm was forced to travel to Earth. Just as he was about to enter the portal, Windrazor burst into the room and the two were sucked into the portal. They battled in transit, and were thrown into overspace. Cataclysm was dispersed over overspace while Windrazor landed in the Beast Wars. Schism

After the failure of his Heralds, Shokaract personally travelled through overspace to Earth to ensure the Dark Essence continued to exist. Paradox The journey drained him and he sought to feed on the sparks of Optimus Primal's Maximals to replenish himself. {{storylink|Terminus (issue)|Terminus]]