Undercity

This article is about the deserted city section. For the city section populated by extradimensional 'bots, see Axiom Nexus{{#switch:{{#sub:Axiom Nexus|-1}}

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The Undercity is a mostly deserted part of Cybertron located nearby the Rust Sea.

Fiction

3H comics

Frustrated by his comrades' doubts on Optimus Primal's claims of incoming doom, Rattrap went to the Undercity to blow off some steam. After a few goes at therapeutically shooting around, he planned to head back, but was trapped by Blackarachnia, who thought he was a little too close to the Rust Sea to take any risks. Homecoming