Loading a Genocide save is jarring. Here is the emotional checklist:
Due to the age of Undertale (released 2015), finding a clean, working Genocide save file in 2025 requires navigating a minefield of fake "survey" links and malware. Here are the three most trusted sources within the fandom:
You have downloaded the file named file9 or genocide_0 . How do you install it? undertale genocide save file download
If you play on Steam, right-click Undertale in your library > Properties > General, and toggle off "Steam Cloud Synchronization." This prevents Steam from overwriting your new save with your old one. Understanding the "System_Information" Files
: A dedicated repository containing save files specifically for the Sans boss fight for players who want to skip the main run. GitHub - Undertale-Save Repository Loading a Genocide save is jarring
Undertale remembers everything. Completing the Genocide route irrevocably alters the game's save files, even if you try to start a new game. This leads to the "Soulless Pacifist" ending, a corrupted version of the happy ending that serves as the game's ultimate narrative punishment. Some players want to see this corrupted ending on their Steam account but do not want to personally perform the Genocide run. Downloading a save file that has already completed the route effectively "infects" the player's game with this flag, allowing them to witness the darker outcomes without playing through the slaughter.
TheUndergroundChronicle.com does not host copyrighted game files. This article is for educational purposes regarding game modification. Always scan downloaded files for viruses. How do you install it
Access the "soulless" world state to see how it affects future Pacifist runs. Where to Find Undertale Save Files
Always ensure you are downloading from a reputable community source. Save files should only be in .ini format or simple data strings (like file0 ). Never run an .exe file disguised as a save file, as these can contain malware.