YMMV / Star Trek: Deep Space Nine: The Fallen

• Nightmare Fuel: Star Trek isn't exactly known to be a horror franchise, even with terrifying species like the Borg out there. This game on the other hand loves to create a creepy atmosphere, be it through dim lighting, music, creepy ambient sounds or all three of those (though it will also occasionally play scary music in brightly lit areas, and sometimes not even to warn the player of a threat, but simply to mess with him).
  • The Grigari try really hard to be among the creepiest species in the whole franchise. While they will not go out of their way to attack you unless you provoke them, it's difficult to predict if they feel threatened. If they target you, they will point a (harmless) red laser beam similar to a Borg drone and pursue you. Their appear as a bipedal semi-humanoid species, but it's clear that they are more machine than man, if not completely artificial. They also never speak nor do they have discernible faces aside from the aforemented eye-laser, but somehow, they do breathe in this raspy, low tone, and their breathing appears to intensify if they are pursuing a threat. And to top it all off, they have shields, making many of your weapons useless against them, and can apparently tell if you are trying to scan them to get their shield frequency.
    • It doesn't help that their boarding capsules are shown to be able to pierce Starfleet shields and cut their way through armored hulls. The Defiant becomes a victim of this despite it's ablative armor.