Starcraft chronicles Vol 1
Most of the starcraft lore is unreliable. It is riddled with contradictions, a lack of any consistent scale (both time and space) and most sources are either highly biased or completely fabricated.
Xel'naga schism
* The xel'naga are supposedly body stealing parasites that survive the repeated births and deaths of the universe.
* They supposedly visit other universes in the multiverse. Such universes are seen in Heroes of the Storm.
* The xel'naga are attributed with god-like powers, but the accounts are inconsistent and live xel'naga have been seen to be killed with laughable ease by conventional weapons.
* None of the xel'naga history can actually be verified, and the observed physiology of live xel'naga contradicts the official accounts.
* Amon joins a schism within the xel'naga. The actual goal of the schismatics is unknown, as are its qualitative differences from the other sects.
* When Amon, Duran and Ouros are questioned about it later, they are clearly insane and self-contradictory.
Protoss origins
* The protoss evolve with purity of form, whatever that means in this context.
* The schismatics manipulate protoss evolution but left it after the protoss broke the khala the first time. The schismatics' reason for this is unknown, as the only explanations make no sense.
* to what degree the khala was broken is unknown, as it would naturally connect all protoss within only a certain number of meters and must be extended with psi-link spires and similar
* The aeon of strife decimates the galaxy, destroying the first protoss empire
* Khas restores the planet-wide khala and founds the second empire
* The second empire expels a series of rogue tribes who nearly destroy their homeworld, and rewrites the history books to conceal their failure
* The empire expands to cover an eighth or so of the galaxy
* The empire collapses due to a poorly explained demographic shift; essentially the last generation was dying of old age while the next was still expanding
* The only part of the empire who are relevant to the story are those in the Koprulu sector. Although their homeworld is named Aiur, it is not the same as the protoss capital located thousands of light years away. For whatever reason it is mistaken as the protoss homeworld despite actually being on the frontier of the empire. The nearby Shakuras and Slayn are the homes of dark protoss.
* Protoss historical records are highly unreliable and prone to both myth and deliberate alteration.
Zerg origins
* After the protoss are mysteriously abandoned, the schismatics travel to Zerus where they study and tweak the original zerg insectoids. The insectoids are naturally telepathic and possess purity of essence (whatever that means). The creatures grow in size and resilience as a result, then spontaneously develop a parasitic life style.
* The schismatics structure the collective consciousness of the zerg into an intelligence they name Overmind. The schismatics monitor and control its actions through a psychic link and post-hypnotic suggestion. They believe that Overmind has no free will as a result.
* The zerg consume the biosphere of Zerus, as well as at least one nearby spacefaring species.
* As a result of the Aeon of Strife going on at the time, another sect of xel'naga intrudes on Zerus and tries to stop the schismatics.
* The schismatics unleash the zerg against their enemies, only to learn too late that the zerg have severed the psychic link and ignored the hypnotic commands.
* The zerg butcher the xel'naga and pilfer their knowledge.
* Accounts of the xel'naga deaths are unreliable. Some accounts claim they were immortal, others contradict this. Some accounts claim they were killed by the zerg, others by the individual named Amon.
* Murals in ulnar depict the xel'naga history from their birth to their destruction. The artist is unknown.
* The Overmind plots to assimilate the protoss to acquire purity of form, enabling the zerg to usurp the xel'naga. The surviving xel'naga claim this is a plot by Amon, but this a delusion.
* Zerus is stripped of its atmosphere and all useable resources, rendering it unable to ever support life again.
* The xel'naga Duran attempts to beat the Overmind to the punch, but he is an incompetent lunatic who accomplishes absolutely nothing for the next several million years.
* The zerg consume countless planets as they blaze a path toward the protoss empire.
* The zerg deduce that they are unable to compete with the protoss empire and require a "determinant" or competitor to purity of form from another source.
Koprulu wars
* Zerg deep space probes determine that some humans have purity of form. While not sufficient to serve as a perfect replacement, it is sufficient to compete with the protoss.
* The protoss and dark protoss intercept a number of probes and investigate Koprulu. This starts the Great War.
* While the protoss fleet initially wins every battle, it is ultimately destroyed by a civil war. This occurs entirely offscreen.
* The zerg experiment with psychics, such as Kerry. She contributes absolutely nothing of strategic value, and serves as little more than the vicious pet of a young cerebrate.
* Zeratul leaks intel that reveals the empire collapsed and thus the determinant is no longer needed. Supposedly he does this by tricking the cerebrate Zasz into letting him walk up and decapitate the creature. Since Zasz is famous for being the cleverest of cerebrates, this appears to be nothing more than propaganda.
* The Garm brood briefly goes feral before a nearby cerebrate immediately reclaims control of it. This is attributed to a new psychic attack devised by the protoss, but it ultimately amounts to nothing.
* The zerg create a super-cerebrate on the planet Aiur for unknown reasons. The protoss claim this creature is a physical manifestation of the zerg Overmind, but that is a contradiction in terms. Nonetheless, the name "Overmind" sticks.
* The dark protoss launch psychic attacks on zerg cerebrates, which seemingly hinders their coordination. This ultimately proves temporary, however.
* Tassadar kills the Overmind by crashing a carrier into it while setting off a psionic storm. This causes the zerg broods to turn on one another to determine who becomes the new Overmind.
The Brood War
* Some Accounts claim that Earth was run by nazis and that Koprulu lost contact but not really. This is all false. Koprulu was colonized by ships sent from Earth. Although the ships crashed and colonization nearly ended in disaster, the colonists were able to re-establish contact with Earth. Earth and Koprulu have continued to maintain trade for centuries, explaining their shared culture and technology.
* After seeing the political turmoil in Koprulu and the threat posed by zerg and protoss, the UED sends an invasion fleet to restore civil order and subjugate the aliens before they invade Earth.
* Despite their sudden lack of coordination, the feral and rogue zerg effortlessly force the protoss to evacuate to Shakuras. The zerg are already waiting for them.
* On Char, a group of cerebrates create a new Overmind. The creature will take some time to mature before it can retake control of the entire swarms.
* Kerry appears on Shakuras claiming to be the leader of her own brood and wanting to help the protoss in exchange for destroying the Overmind before it can enslave her. In truth, Kerry is actually a puppet for a cabal of cerebrates trying to take the swarm for themselves.
* This cabal was previously sent by the Overmind to scout Shakuras after its location was gleaned from Zeratul. They brainwashed the leader figure Raszagal, taking advantage of her senility.
* The protoss plan to use a terraforming device on Shakuras to destroy the zerg. The control crystals were stolen and placed on nearby planets. Kerry helps the protoss retrieve them.
* Aldaris discovers Kerry's true intentions and turns the protoss against her. Her masters send assassins to kill him and foment chaos before he can reveal the full extent of his discovery, while Kerry flees before the protoss can execute her.
* The terraforming device is activated and purges the zerg. However, great collateral damage is caused to the ecosystems and settlements of Shakuras. Due to millennia without maintenance, the terraforming device and its control crystals start to break down and will become unusable within a matter of years. As a relic from the Aeon, the modern protoss do not have the means to repair it.
* Duran somehow frames Stukov for treachery and gets him executed, even though it makes more sense to court martial him.
* The UED enslaves the immature Overmind and numerous cerebrates with psychotropics.
* Kerry's masters manipulate Zeratul, Raynor and Mengsk into assisting them by convincing them the Overmind is the real threat.
* Zeratul, Raynor and Mengsk assassinate Kerry before she can betray them, but her masters simply resurrect her.
* Duran assists Kerry and claims she sped his progress, but this appears to be nothing more than delusional ramblings.
* The new swarm assimilates protoss purity of form to create the brood mothers, which the cerebrates adopt as their new bodies. Although other hybrids are created, they are dismissed as failures due to instability.
* The new brood mothers turn one another rather than reform the Overmind, preventing them from dominating the sector. An uneasy cold war stands for years before a new brood war starts.
* Stukov's cryogenically frozen remains are recovered by Kaloth, a member of a third zerg swarm. The remains are infested and reanimated as part of Kaloth's sadistic experiments in utilizing terran technology. Stukov's memories are preserved due to his extensive cyborg implants.
* Raynor uses nanomachine treatments to reverse the infestation of Stukov. However the treatment later proves only partly effective, turning him into a mutate.
* Stukov is captured and tortured by an insane Duran. Duran has apparently developed a twisted obsession with him for reasons unknown. Go read the slash fiction.
* Mengsk sends Tychus to befriend Raynor and kill Kerry. Mengsk has developed an insane obsession with killing Kerry, probably due to Duran's manipulation.
* After prompting from Tychus, Raynor develops an elaborate plot to subdue Kerry and subject her to nanomachine treatment to reverse her infestation. Tychus tries to kill her before being killed by Raynor, who curses Mengsk for murdering Tychus. Kerry becomes a mutate suffering from schizophrenia and bipolar disorder.
* Mengsk repeatedly tries to kill Kerry, sending her fleeing to her former zerg masters for help.
* The zerg mentally torment Kerry, causing her to become even crazier.
* The zerg kill billions of people to fuel their war machine.