Nightmare Fuel / Uru: Ages Beyond Myst

• There's a wahrk skeleton on the other side of the mountain from Zandi's trailer. You'll want to wet your pants retroactively when you realize just how very damned big it is. (The mandible is standing upright. It's big enough to walk UNDER.) Or, if you're the sort to be sympathetic to large marine predators, you might be dismayed to consider how the wahrk, like your character, probably survived its fall through the Star Fissure, only to find itself beached in the middle of an alien desert, deprived of water and suffocating under its own weight. Even if Gehn had used it in public executions, it's a fairly cruel fate for a creature that was really just an animal doing what nature designed it for.
• Perhaps the creepiest thing ever was in Uru, in the Teledahn Age. The slave areas below the hut can scare the shit out of you, especially if you've read Book of D'ni and are wondering if this is actually a Terahnee age.
• In URU Live, near the end of the game's second run, there was a storyline where Willow "Wheely" Engberg was trapped in a room with a Bahro, a race of creatures enslaved by the D'ni centuries ago. As the players watched the live roleplay, Wheely became more and more frantic, screaming over the comm system as the Bahro repeated "Noloben" over and over again and advanced on her, and when the rescue crew reached the room, well...
• It gets even worse when you recall what the whole plot of Uru Live basically was - a war between two factions of the now freed Bahro, which the DRC, Yeesha, AND the explorers of the cavern are all caught up in. Of those two Bahro factions, one uses their newfound freedom to peacefully try to engage with the explorers, while the second faction vows vengeance for their previous suffering and isn't shy about killing people, hence Wheely's fate. The scary thing? You literally cannot tell the difference between which Bahro want to harm you and which are on your side. Even scarier is that the 'bad' Bahro's leader looks like some sort of zombie version of a Bahro, with a huge scar where a patch of his skin was ripped off during Esher's experiments on him and bright red eyes.
• How about the rotating fortresses in the Gahreesan age? Useful little mechanism, there - the only safe place to link in is right in the center of the smaller fortress, where you can spy murder holes up top. Later on (or earlier, if one explores Teledahn first, one can link via a Bahro stone (which violates the linking rules) to get into a small prison chamber. Research shows that through exact timing mechanisms, the D'ni could link prisoners right into those cells.
• Tens of thousands of D'ni died in the plague and chaos that depopulated the city, with the survivors fleeing to other Ages in such haste that most didn't even have time to bring any food with them. In all of Uru, you find a grand total of one human skeleton (Kadish's). So what happened to all the other bodies...?
  • Many were buried by D'ni survivors led by Atrus after he managed to regain access to the city, during the events of The Book of D'ni. Any that they missed, at least on Ae'Gura, were cleaned up by the DRC, though what was done with these is unclear.
• The Nexus: if you link there without a KI, you can't interact with the machine. And if you don't have a Relto book, there is no way out.