Transformers Cybertron

Planet Cybertron.

Cybertron is the home planet of the Transformers and (usually) the body of their creator, Primus. Cybertron is (almost always) a shining metal, technological world; a planet of towering future cities without end and vast metallic plains, spiraling metal mountains and bottomless neon-lit chasms. Battling over control of Cybertron and its resources is frequently the motivation for, or origin of, the Transformers' epic wars. Beyond these facts much about Cybertron can differ between continuities, see individual entries below.

History

Cybertron was a living mechanical planet and the homeworld of the Transformers. At its core existed the AllSpark, a massive spark from which all other sparks originated; these sparks would travel up through the Well of All Sparks to the planetary surface to be forged into new Transformer life. Conventional mythology holds that the Thirteen were the first Cybertronians; it was Solus Prime who created the Firstforged, a second generation of Transformers who laid the groundwork for a global civilization. End of Time The Reversionists believed that Cybertron was the transformed body of Primus, who had surrendered his physical form to create a home for his children. When a Cybertronian grew tired of living, they could chose to go "immersant", a voluntary ego-death where their bodies and minds gradually merged with the planetary strata until their spark permanently left their body and rejoined the Allspark. Escape Part Two Many Titans chose to go immersant outside Iacon; their jumbled remains eventually became the Cybertronian Mountains.
During the Age of the Firstforged, early heroes like Halonix Maximus tamed the wilderness, battled bestial Transformers like Preditron, Tremors and raised towering works of art like the settlement that would eventually become Crystal City. The Cybertronians established a planetary Senate in Tarn, Prime led by a Prime, who served as the assembly's "First Senator"; the Forge Pyramid in Iacon became the nexus of new Transformer life, where the sparks that arose from the Well of All Sparks were forged into new Transformers. Early in Cybertron's history, a a group of Cybertronians used the Enigma of Combination to become "The Abomination", a monstrous, fuel-guzzling combiner which ravaged the planet until a group of Transformers successfully felled the creature in Iacon. At some point, the Senate was later relocated to Iacon.
During Cybertron's ancient history, the Titan Chela saved the planet from a rogue comet. During the Age of Expansion, the people of Cybertron colonized many new worlds and vanquished rival galactic powers with the assistance of the mighty Titans. The Change In Your Nature Part Five During this prosperous age, Cybertron was invaded by rust worms, rust-secreting metallivores who threatened to consume the entire planet. Efforts to neutralize the creatures failed; in the end, Cybertron itself sealed them away within an impenetrable basin, which became the Sea of Rust. Sea of Rust I The Age of Expansion came to an end when Exarchon was corrupted by forces unknown while on an extraplanetary voyage; he returned as a living virus capable of snuffing out the sparks of other Cybertronians and incorporating their bodies into his tripartite collective. War's End Part One The subsequent War of the Threefold Spark saw the mass conscription of many Cybertronians. The final battle of the war was fought outside Iacon; while Exarchon was seemingly vanquished, the cost of victory proved high, and cities across the planet were left in ruins.
Realizing that their reckless expansionism had brought Exarchon down on their heads, then-Autobot leader Nominus Prime passed the Nominus Edict, which effectively curtailed any future colonization endeavours, mandated laws regarding energon rationing and storage, and limited the forging of any new Transformers. The Change In Your Nature Part Three Nominus made the decision to end the creation of new Titans; future Titansparks were placed in storage in a hidden room beneath the Forge Pyramid. War World: Titans The remaining Titans were repurposed into an orbital defense fleet that would protect the planet from spaceborne threats. The World In Your Eyes Part One Nominus Prime's term saw the rebuilding of Iacon Constructicons Rising, Part 1 the construction of the Winged Moon, a massive energon-harvesting station that would provide Cybertron with limitless energon, and the Tether that connected it to Cybertron. Orion Pax: Free Fall While some Transformers looked back on the past with regret, noting that their expansion had caused other races to fear their destructive nature, The Change In Your Nature Part Five other Cybertronians like Termagax mourned a lost age of prosperity and potential that'd been cut short and felt that the Nominus Edict had overstayed its welcome.
By the time that Sentinel Prime supplanted Nominus Prime, Cybertron had established diplomatic relations with neighboring powers such as the Thraal, A'ovan, Occulted Dremden, and Voin; Nautica: Home in time, different alien species immigrated to Cybertron and established various ethnic enclaves, such as Iacon's sprawling Xeno-Quarter. The World In Your Eyes Part Five They brought with them animals like skitters and flyts, which turned invasive and established breeding populations on the metal planet. The World In Your Eyes Part Two Many lived in the barren wastelands between cities; at least one region held a thriving forest of imported alien flora.
Termagax's "Ascenticon" movement grew to become a substantial political party that advocated for the abolition of the Nominus Edict in order to restart a new age of colonization and conquest; despite this sentiment, the Edict had indeed brought peace to the metallic planet, to the extent that Brainstorm's murder was the first in living memory. The World In Your Eyes Part Two Nautica: Home Eventually, however, tensions between the Autobots and Ascenticons flared, and their early conflicts saw the destruction of the Memorial Crater The Cracks Beneath Your Feet Part Three and a sleeping Titan in the Cybertronian Mountains. The Change In Your Nature Part Two One particularly vicious terrorist attack saw the Ascenticons unleash a data-bomb that took the planet's Titan Net out of commission; amidst the confusion, they hijacked the Titan Vigilem and used him to destroy the Tether, causing planetwide devastation. The Change In Your Nature Part Five As disasters piled up, unusually intense geological activity began plaguing Cybertron, Tremors to the point where intellectuals like Straxxus and Geomotus speculated that the quakes might rupture the Sea of Rust and unleash its contained population of rust worms into the planetary crust. Escape Part Two Groups of Cybertronians began drafting plans to get offworld: these included the population of Darkmount, Escape Part Four and a group of Reversionists led by Heretech—however, his "exodus" was a ruse so that he could double-back to Cybertron, in the hopes that he could kill everyone on the planet before Gauge helped foil his plan.
Eventually, the Ascenticons—now calling themselves the "Decepticons"—stormed the Senate building, overthrew Sentinel Prime, and seized Iacon. We Have Deceived You An ad-hoc rescue mission ended with the Rainmakers killing Sentinel Prime; the Matrix of Leadership subsequently passed to Orion Pax, who became Optimus Prime. Prime The Autobots attempted to rescue as many alien immigrants as they could; Escape Part One with the assistance of Dai Atlas, they were able to evacuate many immigrants and neutral Transformers off-planet in a repurposed Ark-class vessel. Escape Part Five At the same time, however, the Insecticons went rogue and created an clone army, which threatened to overrun the planet.
As the Decepticons consolidated their power, it was found that the data-bomb they'd used on the Titans was too effective. Fearing that the Autobots might be able to reactivate the giants, Megatron ordered them brought down. When the Titan Cargohold crashed in the Memorial Crater, Roadtrap and Gutcruncher found Provoke in the ruins, Titans unaware that she had been usurped by Exarchon. Enigmatic Ultimately, the Autobots were unable to hold Iacon and were forced to fall back to Crystal City. Although the Autobots controlled Crystal City and Darkmount, the Decepticons captured multiple Cybertronian cities, including Protihex, Tarn, Stanix, the Tagan Heights, and Protihex. Test Flight I When the reclusive Termagax was located and was found to be holding the Enigma of Combination, Swindle's II the Autobots and Decepticons converged on her House. Sea of Rust I The battle saw the predicted fracturing of the Sea of Rust's basin, releasing the rust worms on the rest of the planet. As the Sea expanded, the Enigma fell in and concurrently, Exarchon began his power play once again.
The Decepticons attempted to capture Crystal City, only to be forced into a parlay by the arrival of Lodestar and Computron. A Dust of Crystals The Landscape of Fear Allowed to speak to Megatron, Optimus proposed a temporary alliance to save Cybertron, promising that the Decepticons could have the planet in the aftermath. On Starscream and Soundwave's advice, Megatron agreed. The Landscape of Fear War's End Part Two Knowing Strika would honor both the spirit and the letter of the alliance, Megatron pulled her out and sent Jhiaxus against the Autobots, having his general conduct a bombing that placed the Autobots in the path of the rust worms. Radical Time When Termagax witnessed an Insecticon overpower a rust worm, The Landscape of Fear she hit on the idea of turning the two predators against one another. Radical Time Once the viral program had been created, Novastar was able to detonate it on Bombshell; the software reprogrammed the swarming Insecticon clones so that they would only eat the rust worms.
Shortly before the fall of Crystal City, Optimus had sent a team to the Sonic Canyons to look for any clues about Exarchon. After they were found by the tyrant, War's End Part One they discovered his ultimate plan to use his abilities on the AllSpark and become Cybertron itself. When the Autobots caught up to the last third of Exarchon's spark, Zetar managed to destroy the Threefold Spark, ending his threat and saving Cybertron.
As Optimus' convoy marched to Darkmount, they were met by Megatron's elite who refused to allow them to leave, knowing that the Autobots would frustrate the Decepticons' galactic expansion. The arrival of Computron and the removal of the imploder-bearing Skywarp allowed the Autobots to continue onwards. Arriving at Darkmount, Optimus learned the last Ark and Lodestar had been sufficiently repaired enough to leave the planet. As boarding commenced, the Decepticon army attacked, both Computron and Leviathan falling to the might of Devastator. To buy the Autobots enough time to leave, Scattershot called on the power of the Combination Core to add Pipes, Flareup, Backstreet, Javelin and Groove to the mix. Reborn as a ten-bot combiner, Computron managed to overpower Devastator and hold off the Decepticons long enough for the Autobot ships to launch. Though Shockwave congratulated Megatron on conquering Cybertron, the Decepticon leader was well aware that the war had only just begun.

Autobot Cybertron Forces

Elita One Leader	Ultra Magnus Iacon City Commander	Springer	Kup	Arcee

Alpha Bravo	Blurr	Broadside	Bumper	Chromia

Cloudraker	Fastlane	Firestar	Glyph	Greenlight

Hot Rod	Lancer	Moonracer	Roadbuster	Sky-Lynx

Topspin	Twin Twist	Vibes	Whirl	Chromedome

Brainstorm	Hardhead	Highbrow	Crosshairs	Pointblank

Sureshot	Greatshot Six Clan Ninja	Sentinel Prime Deceased.	Zeta Prime Deceased.

Technobots

Scattershot	Afterburner	Lightspeed	Nosecone	Strafe

Computron

Decepticon Cybertron Forces

Overlord Helex High Commander	Thunderwing Kaon City Commander	Bludgeon Peptex City Commander	Straxus Polyhex City Commander	Jhiaxus Praxus City Commander

Shockwave Science Officer	Soundblaster Intel/Comms Officer	Ratbat Fuel Auditor	Sixshot Six Clan Ninja	Apeface

Mindwipe	Skullcruncher	Pounce	Wingspan	Snapdragon

Barrage	Chop Shop	Ransack	Venom	Weirdwolf

Acid Storm	Ion Storm	Nova Storm	Sun Storm	Misfire

Triggerhappy	Slugslinger	Vehicon Drones	Vehicon Drones	Vehicon Drones

Decepticon Justice Division

Tarn	Helex	Tesarus	Vos	Kaon

Nickel

Predacons

Terrorize!

Arising from the ashes of the Great War, the Predacons are, at least in part, descendants of the Decepticons. Some sources suggest that they were born from what remained of the original five Predacons. By order of the Pax Cybertronia, they exist as something of an underclass, appearing to be equals, but firmly under the Maximals in the social order. This has led many Predacons to hold bitter grudges against the Maximals.
Predacons tend to take reptilian or arthropod beast modes, although this is not a hard-and-fast rule. They can also turn into less-than-realistic sea creatures and military vehicles.
The adjective for "of or pertaining to the Predacons" is Predaconial, though it is extremely common to simply substitute 'Predacon'.

Razorclaw	Divebomb	Headstrong	Rampage	Tantrum

Predacon Gestalt Predaking

Seacons

Nautilator	Overbite	Seawing	Skalor	Snaptrap

Tentakil	Seacon Gestalt Piranacon

Terrorcons

Hun-Gurr	Blot	Cutthroat	Rippersnapper	Sinnertwin

Terrorcon Gestalt Abominus

Trivia

Lots.