13 Lost to Darkness - Friday Night Funkin - UnknownBf

Game Information

Category
FNF Online
Players
1337
Updated
2026-05-24
Rating
4.7/5 (1119 votes)
Controls
Click/Tap or Spacebar
Platform
Web Browser (HTML5)

13 Lost to Darkness – Friday Night Funkin – Horror FNF Game Online Free

13 Lost to Darkness – Friday Night Funkin – UnknownBf is a free online horror‑themed rhythm game from creator @UnknownBf7905. Titled “Harv’s Nightmare – Lost to Darkness”, this FNF experience comes with strong content warnings.

⚠️ Content Warning

Viewer discretion is strongly advised. This game contains:

  • Mild blood imagery
  • Intense flashing lights (seizure warning)
  • Scenes that may scare young children (5+ but still intense)

The creator explicitly says: “don’t say I didn’t warn you.”

Controls & Features

  • WASD or Arrow keys – Play notes
  • P – Toggle Botplay (auto‑play)
  • E – Toggle Downscroll mode (notes scroll downward)
  • G – Stop the project immediately

Credits & Context

Engine created by @FlyingMusicNote, input/charting system by @Shmish21. Engine data: Poly 0.1.2.6 – report bugs to @Ceemech. For backstory, play the old “Lost My Mind” project on Scratch: Lost My Mind project. Subscribe to UnknownBf on YouTube: @UnknownBf7905.

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