At the end of the Genocide route, Sans dies. Something changed along the way, a white hooded woman strikes a deal with Sans that'll set him free from the Resets. (Disclaimer! I don't own anything here. UNDERTALE belongs to toby fox while RWBY belongs to Rooster teeth and Toby Fox!)

The Underground gets one Hell of a newcomer. Follow the Doom Slayer on his path to escape the Underground, meet new friends, and make pasta. Uses elements from both the 1993 Doomguy and the 2016 Doom Slayer. Rated T because, duh, Doomguy.

There's been an awakening the dark side of the Force has grown stronger ever since a vortex appeared in the Maw Cluster. Grand Admiral Thrawn, along with Inquisitor Mara Jade are sent to discover the source of this unnatural power of the Dark Side. When Earth is discovered the Empire learns that there is more to this primitive planet than meets the eye. PS Thrawn is based on Rebels

The honourable Shinobi fulfilled his duty. Protected his lord, and severed the ties of immortality at the expense of his own life. The Shinobi expected to enter the afterlife, but expectations were shattered, just as the moon before him. - a RWBY and Sekiro story.

Fandom called, spaghetti answered.

The dark lord Darth Vader has terrorized the humans on the Surface. As he was about to cast the remaining humans into oblivion, he cross paths with a child named Frisk. She falls into the Underground were she is cared for by Toriel. What she didn't know was that Lord of the Sith had followed her. Will there be mercy or endless terror? Rated: T for intense scenes and violence.

"These little sparks cling on to life, everyone caught in the struggle. And then the storms of change, they fan the flames, scattering ashes to the wind." When the mysterious Galeem attacked, everyone was pulled in the struggle. Isaac Clarke, who just recovered from the trauma left by the Necromorph invasions years ago, was just about to have a normal day when it happened...

After the events of the Big Picture Show, Eddy assembles Double D and Ed for a camping trip to a prime resort location, Mt. Ebott. Little do they know that their real adventure lies under the mountain, rather than on it. Will the Eds get a happy ending? Or, will someone else inherit their power, and show the true meaning of this world?

The world that these broken heroes knew is now nothing but fractured rock and earth. Attempts of accepting the terms of truth is unbearable, and we soon make false truths and bury it with lies. But in the end, madness will set in like a parasite digging into the weak flesh, which will consume us, and kill us within.