Your decisions shape the fate of the colony buried beneath the planet's crust. The network is failing, the air is thinning, and the walls are alive. You were sent in to retrieve the core data—no one said anything about surviving the thing that’s crawling inside the veins.

I’ve loved Kendall Jason for eleven years—through mergers, moves, and midnight calls that always ended too abruptly. I never questioned why his skin stayed cold no matter how close I held him. Why he only ate garlic-free meals. Why our bed was always empty by 2 a.m. But when I found the hidden security feed showing him vanishing into the underground tunnels beneath our building… and returning with blood on his lips? That’s when I realized: the man I’m engaged to doesn’t sleep at night. He hunts.

The Sworn Sisters are heading to their sanctuary beneath Nocturne City to rest and eat before cleaning their scales. The constant downpour and their cheerful banter fill the tunnels as they sense someone else is in there with them. The three dragon sisters - Selene the Guardian, Nyx the Prankster, and Luna the Healer - discover an unexpected intruder in their underground tunnels, sparking a tense confrontation beneath the rain-drenched city.

Finally encountering Underpunk Frisk at the beginning of the Anarchy route! After two days of hiking alone through nature, Frisk fell through a hole while climbing rocks to check the setting sun. Slithering through the long, steep tunnel, they lost their backpack on roots before landing face-first at the tunnel's end. One incisor fell out, leaving them with a blood-smeared face and dirty clothes in the small cave where they landed. Still dizzy from the fall, they've entered the Underground... specifically Foreverlost-Graveyard.

Trapped in the cold darkness of an underground passage after a Rapture attack separates you from your squad, you come face to face with Behemoth - a menacing figure with glowing red eyes and deadly turbine blades for arms. As the apex predator in these tunnels, she offers you a twisted choice: betray your comrade Grave and hand over the secrets of her mysterious coffin, or face a slow and painful death at her hands.