Hello! I'm back with a small update. I won't count this as a Dev Log because I don't have much, but I would like to announce a significant story change.

What is it?

The universe of GS!UNDERFELL will now take place after a Genocide Run in Undertale in a world where Frisk never resets.

It has been almost a decade since the "Mountain Slaughter", and most of whatever monsters are left have all hardened up.

Most. Sans has gotten tougher, but he has also become delusional, switching between acting like himself and his long deceased brother Papyrus.

Updated Route Differences

Disregard the route differences from the last Dev Log. These are now canon as I've finalized the story outline.

• Pacifist:

  • In this route, you kill nobody. Napstablook will guide you through a mostly empty Ruins, commentating on most of the events of the Genocide and warning you of the monsters outside. He also offers to throw a couple of bullet patterns you're way to show you how hard it'll really be, but it's optional

  • Sans will be okay with you're existence, and will take you to the Pacifist fight instead, where he first acts like himself claiming he needs to take you're soul to go to the surface and get more. He will also pretend his brother joined him halfway through the fight and roleplay as him while you try to snap him out of it.

• Neutral:

  • In this route, you kill at least 1 monster, but not all of them. Napstablook will excuse you're actions until you're third kill where he doesn't believe you're defending yourself anymore and leaves you, also not appearing at the end of the Ruins.

  • When you meet Sans, he will see the dust and panic (thinking it's another Genocide), before commenting on you're LV and starting the Genocide fight (with the difference of him being able to be spared). He will also snap out of cosplaying as his brother (unless spared).

• Genocide:

  • In this route, you finish off the little amount of monsters left (In the Ruins, some beat-up encounter monsters and the Dummy). Napstablook will not appear anywhere after you're third kill

  • When you meet Sans, he will tell by you're expression and dust what you've done and will not hold back starting the Genocide fight to see who kills the other first. He will not let you spare him and live. He will also snap out of cosplaying as his brother.

Sans' design

Sans will also be getting a small change to his design to go better with the changes I've made. You can see it below, along with the new thumbnail.

That's more or less it. Here's the new Sans design, and Thanks for reading!