Nightmare Fuel / Sea of Stars

• The Dweller of Woe and the curse of Wraith Island. For years, the Dweller of Woe has used her cursed voice to enchant townspeople from the Town of Lucent and lure them into her mansion, where they do not return. The Town of Lucent is filled with sad, despondent people who have grown so accustomed to their family and friends randomly being led to their deaths that some of them have slipped into an exaggerated state of denial, pretending not to notice when one of their neighbors becomes enchanted by the song. One of the residents even asks why she wasn't chosen yet when The Dweller of Woe has already taken her husband and son. You don't even have to imagine the horrific effects of someone being summoned to the mansion by the Dweller; just as you arrive at the front gates, it beckons for Garl, and he starts to approach it against his will. Neither Zale nor Valere could help him, and it takes Serai's paralytic poison to keep him out of the mansion.
• Every single line in the village of Repine. The people there have been forcibly turned into cyborgs so the Dweller of Dread can feed on their minds for eternity. They sit around the ruins, not doing much of anything, mumbling horrifying lines whenever you talk to them.
  I need a way back to my mind...
  I used to feel...
  They took too much from us...
• For people with a fear of robots and the concept of Unwilling Roboticisation, the entire world Seraï inhabits can end up being terrifying. Almost nothing about it is organic anymore. Even the fish are, at best, mutated beyond recognition, and the desert wasteland of the Cerulean Expanse seems to be carried on the wind throughout the entire world. The only thing stopping Seraï's world from just being a Ghost Planet dominated by nightmare-inducing cold, lifeless machines and tortured souls is the presence of a bird-person cult to a lifeless statue - and that same cult is also the source of nightmares. The worst of it is Repine, though - you see children that have been slowly tortured over centuries from being made into robots, what's left of their souls serving as food for the Dweller of Dread. As Seraï herself says, her world was totally overcome.
• Abstarak from The Triumvirate of Eminence will sometimes punctuate their words by summoning a photorealistic crow head that flashes on screen for only half a second with a piercing caw, creating the closest thing Sea of Stars has to a Jump Scare. This same crow head can make an appearance during the Triumvirate of Eminence boss battle as Abstarak's special attack, moving with unnatural, jerky movements before reducing all of your active party members' HP to 1.
• The Great Eagle is a blessed phenomenon, utilized by Resh'an to deliver babies with the potential to become Solstice Warriors to the town of Mooncradle, and no doubt you've used its power to heal your party - and damage and delay your foes - at least once. And then Abstarak reveals a ghastly truth about it: the formula that Aephorul used to grant that form to Resh'an was made from the remains of their race, which Aephorul genocided and forced the survivors to serve him. You can tell Resh'an is both distraught and horrified to learn the truth this way, like any sane person would.
• The Fleshmancer's lair isn't for the faint of heart. Everything in the building makes a sickening squelching sound as you move around it, and the techno beat Seraï's world is known for is haunting and discordant with the rest of the structure.