History NightmareFuel / Homeworld

!! In the original game

!! In Cataclysm
Mostly provided by the antagonist, who is flat-out ''terrifying'':

!! In Homeworld 2

* A major one happens to the Hiigarans at the end of the game, when the Vaygr unleash their final trump card, the 3 T-Mat Planet Killers. Other than looking completely different than anything else the Hiigarans have ever encountered, they are also NighInvulnerable to anything except the WaveMotionGun of the ''Sajuuk''. Their sole method of attack is firing [[AtmosphereAbuse Low-Orbit Atmosphere Deprivation Weapons]], [[HistoryRepeats the same weapon the Taiidans used to kill everyone on Kharak]], which must've certainly sent shivers down Karan's spine.

** Every single time the Beast uses its infection beam, if you are close enough to the ships being converted, you ''will'' hear the screams of your people getting consumed alive by the Beast. You will soon feel a GenreShift from RealTimeStrategy to SurvivalHorror, most especially on the harder difficulties.

** Firsthand, your introduction to the Beast. The screams. They will stay in your memory. It's also loaded with FridgeHorror because you don't see what the Beast did to the interior (and the workers of) your lower deck. But the audio is enough. Watch it, if you dare. (If you are not even slightly unnerved, you truly have nerves of steel!). https://www.youtube.com/watch?v=nDcELUCroDs

*** Worst of all, the Imperialist Taiidan designed those warheads, and decided to test-fire them against ''their own people''.

-->'''Bentusi:''' You are mad! It will take irrecoverable time to repair the slipgate! The Devourer will find us by then. Each of us that is consumed takes the story of a thousand Bound worlds with them! The creature will devour ''all'' songs! ''All'' knowledge will serve its hunger!

*** Needless to say, after that incident, the Bentusi become so terrified of the Beast (or "The Devourer" as they call it) that they deem the galaxy a lost cause and try to escape it. When the Somtaaw try to stop them from leaving (As they need their help to repair the Siege Cannon), the panicked Bentusi tell a chilling threat to them before launching their own Acolytes (The only known Bentusi combat ship that they still use) to stop them.

*** Once their Hyperspace gate is destroyed, the Bentusi go ''berserk'' and attempt to destroy the Kuun-Lan and their fleet. Only the ship's Fleet Commander calling them out on their SanitySlippage stops them from killing them all.

** The Bentusi's cryptic warning against travel through the nebula says it all: ''No one returns''.

** It's probably justified PayEvilUntoEvil because the captain of the captured ship has taken part in the destruction of Kharak and was slaughtering the last of your people, but it can still be pretty unnerving to hear that casually from Fleet Intelligence.
** Not to mention...what happens to the enemy crews of all those ships you keep capturing?

** Firsthand, your introduction to the Beast. The screams. They will stay into your memory. It's also loaded with FridgeHorror because you don't see what the Beast did to the interior (and the workers of) your lower deck. But the audio is enough. Watch it, if you dare. (If you are not even slightly unnerved, you truly have nerves of steel !). https://www.youtube.com/watch?v=nDcELUCroDs

*** Speaking of the Bentusi, when you are sent to aide one in the middle of being attacked by a Beast convoy, you arrive basically too late. Once an infected Heavy Cruiser attacks the Tradeship, the Bentusi is scared shitless of it, especially when it fires its Infection Beam and corrupts his ship.

*** Though it is worth noting that those who board the vessel are oddly facsinated by the complexity of the tecnonlogy that was once their friends and loved ones

** The seventh mission : the convoy escort mission. Protect utterly defenseless (and ''terrified'', judging from the distress call they make) convoys against Beast infection warheads. If you do decide to focus on saving some ships at the expense of others, and they destroy the infected ships, it's an easy mission. (You will still hear the screams though) If you want to and save all the ships, and are on a higher difficulty challenge, good luck !

** The worst part is that, in a twisted way, ''they are right.'' The Taiidan Empire's collapse happened because the Hiigarans took back their homeworld, which had been rebuilt into their empire's capital. Hell, the Taiidan Empire in the state it was before Riesstiu IV The Second burned Kharak to the ground was because the Hiigarans used to be their [[ArchEnemy Arch-enemies]] and did the same thing to ''their'' homeworld, which drove the future Emperor Riesstiu I, at the time an admiral, into a RoaringRampageOfRevenge that led to most of the Hiigarans being wiped out by them.

-->'''Naggarok''': ''You are what '''all''' life is to us! Food!''