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Nightmare Fuel: FTL: Faster Than Light
"This was supposed to be for use in Nebulas and other, more creepy areas, but listen to the thing! FTL is not a psychological horror game, and this track was way too freaky and claustrophobic. Still pretty cool, though."
—Ben Prunty, the composer of the FTL soundtrack, on the Cut Song "Horror"
FTL: Faster Than Light is thankfully light on graphic depictions of violence and horror, but it still has its eerie moments.
The Nightmare Fuel must have a Zoltan Shield Bypass!
The Giant SpidersRandom Event. The first possible option is sending in your crew, and if you're unlucky, your crew gets to deal with massive spiders coming out of a vent, before you finally leave, losing a crew member in the process.
The Damaged and Dilapidated Space Station Random Event. The whole place is filled with corpses and the stench of death and decay. If you're unlucky, one of your crew members can contract the fatal disease that wiped out the station, and not even a Cloning Bay will save them (An Improved Medbay will, though).
The Mantis's sprite resembles that of a spider. Imagine you're just merrily jumping from sector to sector when all of a sudden, the alarms go off and there are six of these insectoid creatures after your blood.
You can make it even more horrifying by turning it around. Imagine this: a few Rebel humans beam aboard your ship, blasters ready and not expecting much more than a few Federation Loyalists... that's when you Ion Bomb their Teleporter so they can't get back, lock down your improved Blast Doors and rush your bloodthirsty, frenzied Mantis screaming at them.
In an event you can find in Zoltan sectors, one of your crew members undergoes rapidreverse aging until they disappear.
Nebulas sectors can be frightening due to the empty-sounding explore music. With every jump, there comes the risk of enemy ships, which doesn't sound too bad, or a Boarding Party that you may have trouble locating due to your sensors being unusuable. If you aren't paying attention to the narration, the sudden "INTRUDERS DETECTED" warning can come off as a Jump Scare. The worst part about boarding parties is that unlike ships, which are marked when you have updated map data or Long-Range Scanners, there's no way of telling if your next jump will dump you into boarder territory.
Slug ships in Slug-controlled nebulas can shut off your oxygen. We hope you like asphixation!
When enemy crew die, they don't make any noises. When your crew die, you get to hear anywhere from the grinding clank of Engis being dismantled to humans groaning in pain as their last bits of HP are wiped out.
The event of finding weird horse like creatures. Don't try to sell them to slavery.
The Explore version of "Debris" sounds very lonely and ghostly, painting the feeling of exploring abandoned wreckage in dark areas of space. The Battle version sounds less ominous, but is reminiscent of alien abductions.
When you fight an enemy ship, the game will reward you with extra loot if you manage to wipe out its crew without destroying it. This normally requires a boarding action and brutal fight to the finish, but there's other options:
Use fire weapons to set fire to their entire ship.
Combine the two to give the enemy the option between burning to death of suffocation!
Lanius can teleport into the enemy O2 bay and start draining oxygen immediately & blowing it up. Without an immediate overwhelming attack, this can result in the Lanius standing in an oxygen deprived O2 room laughing as the enemy crew run around knowing their oxygen will slowly move from room to room and their only chance will be to charge into an airless room to fight a metal man who doesn't need oxygen to survive.
Advanced Edition introduces the Lanius race. What do they do? They not only can survive without oxygen, but they absorb it from whatever rooms they're in. Their presence on an enemy ship means bye-bye to the victims' air supplies.
Hacking the medbay doesn't just deactivate it, it hurts anyone who's unlucky enough to be in it at the time. Since hacking a room also seals the doors, anyone in there is probably going to die. Since the medbay works by pumping people full of healing nanomachines, they're going to die a death of a trillion cuts frantically trying to force a door open as the room that was supposed to heal them tears them apart.