CyberNeomorph

The CyberNeomorphs were a variant of Cybermen which originated when a group of CyberNomads discovered a tomb of CyberTelosians.

Mondasian colony ship
In an example of parallel evolution, a group of Neomorph Cybermen, led by a Cyber-Leader and a Cyber-Lieutenant, evolved from one of the hundreds of Mondasian Cybermen created on Floor 1056 of a Mondasian colony ship. (TV: The Doctor Falls) The patrol of CyberNeomorphs was sent from said floor to Floor 0508 of the ship. Under orders from a Cyber-Planner, they attempted to prime a group of Cybermats to attack Floor 0507, and to capture and  to interrogate them as to how and why the Cybermen's definition of humanity had been altered, and who had done so. The Cyber-Leader knocked out the Master after he destroyed the Cyber-Lieutenant, and kept him prisoner by the floor's lifts. After the patrol destroyed Topknot, they were destroyed by a powerful electric shock resulting from the Master firing his laser screwdriver at the steel ground of Floor 0508, after Missy hacked the floor's weather system to force it to rain. (PROSE: Alit in Underland)

26th century
In 2526 several planets would unite in war against the Cybermen in an event called the Cyber-Wars. A force of CyberNeomorphs tried to devastate Earth using a Cyber-bomb and convert the survivors. Failing this, they hoped to crash the freighter into Earth and cause an ecological disaster. Although the attempt failed, the freighter was catapulted back in time to become the "meteor" that wiped out the dinosaurs. (TV: Earthshock)

Incursion into the past
On Telos, the CyberNeomorphs plotted to change history and, as already noted, divert Halley's Comet to Earth in order to destroy it and to save Mondas. They were defeated by the Sixth Doctor. (TV: Attack of the Cybermen)

Isolated
A fleet of CyberNeomorphs time-travelled to 1988 and attempted to invade Earth, but the Seventh Doctor used the Nemesis to trick them and destroy the Cyber-Fleet. (TV: Silver Nemesis)

The Neomorph Cybermen and a group of mercenaries led by Karl made an alliance with the Daleks in a gambit to sabotage a peace conference on Earth in 1988 and have the planet destroyed. The Cybermen and the mercenaries had a much more active role than the Daleks, as they were tasked with kidnapping an American envoy on whom the success of the conference depended and in capturing the Doctor whom the Dalek Emperor declared a vital part of the plan. The Daleks took a more behind-the-scenes approach as they planned to use the mercenaries and Cybermen as nothing more than scapegoats who could be blamed for the destruction of Earth by the Galactic Council while the Dalek involvement remained a secret. When the Sixth Doctor revealed this information to the Cybermen and the mercenaries, they immediately turned on the Daleks. (AUDIO: The Ultimate Adventure)

A Neomorph Cyberman was one of a group of aliens present at a Treen colony in 1991. They initially refused Dan Dare and Digby's appeal to donate money to charity, but were convinced with the assistance of the first seven incarnations of the Doctor. (COMIC: Comic Relief Comic)

In 1992, a Cyber-Force composed of a Cyber-Fleet of at least twenty Cyber-Warships with at least two hundred thousand Neomorph Cybermen attempted to conquer Earth by dehydration, but the Sixth Doctor programmed their weapons to target the methanol that served as the "lifeblood" of cyber-technology. (AUDIO: Hour of the Cybermen)

Rassilon Era
During the Dark Times on Gallifrey, the Cybermen were excluded from the games in the Death Zone, because the Time Lords believed they had an unfair advantage over other victims of the games. Borusa, having found the Game of Rassilon, transported a squadron of Neomorph Cybermen to the Death Zone to threaten and harass the Third Doctor and Sarah Jane Smith. These Cybermen were destroyed by a similarly transported Raston Warrior Robot. A second squadron allied with, intending to stage an invasion of Gallifrey, but he betrayed and destroyed them. A third squadron attempted to destroy the Fifth Doctor's TARDIS, but were foiled when the TARDIS dematerialised at the last second. (TV: The Five Doctors)

During the Doctor's era, the Neomorph Cybermen allied themselves with to become the rulers of Gallifrey. After they kidnapped Susan Foreman, they were stopped by the Fifth Doctor. (PROSE: Birth of a Renegade)

Undated events

 * Destiny-cybermen.png Cyberfaction that looked like CyberNeomorphs but sounded like CyberMondasians were once used by the Master to try and kill the Graak and the first seven Doctors. The were shown to either be coming out of or going into hybernation. ([[GAME]]: Destiny of the Doctors)

Alternate timelines
In an alternate timeline created by the Black Guardian where the First Doctor never left Gallifrey, the Neomorph Cybermen were one of many races which fought over control of Earth. This timeline was destroyed when the Seventh Doctor retrieved the Key to Time. (COMIC: Time & Time Again)

Behind the scenes

 * A Neomorph Cyberman appears as part of the Rani's menagerie in NOTVALID: Dimensions in Time.