Friday Night Funkin’: Library Of Ruin

Rating:4.1 (99 votes)
Released:March 27, 2026
Technology:HTML5 (Unity WebGL)
Platforms:Browser (desktop, mobile, tablet)

Friday Night Funkin’ Meets the Library of Ruina

Dive into the intense world ofFriday Night Funkin’: Library Of Ruin, a thrilling web-optimized mod that throwsBoyfriendinto a high-stakes musical showdown. Inspired by the hit card-based RPGLibrary of Ruina, this mod challenges players to face off against powerful Librarians in epic rap battles — because losing means getting turned into a book and trapped forever!

This unique crossover brings fresh energy to theFNFuniverse with challenging rhythms, original art, and a darkly immersive theme. Whether you're a long-time fan of the original game or a rhythm game enthusiast, this mod delivers a one-of-a-kind experience straight in your browser.

Epic Tracks to Master

The mod introduces a set of original and expertly charted songs, each inspired by the intense atmosphere ofLibrary of Ruina. Prepare to jam to these tracks:

  • Flame
  • Stain
  • Food Lover
  • Cosmic

Each song offers a unique challenge, blending the mod’s distinct visual style with dynamic beats that test even seasoned FNF players. So, bring your best skills and see if you’ve got what it takes to survive the library.

How to Play

Designed for accessibility,Library Of Ruinis aweb-optimized modthat allows players to enjoy the game directly in their browser. This version is perfect for those using low-end PCs, Chromebooks, Macs, Linux systems, or anyone who can't run the standard .exe file. No downloads or installations required — just jump in and start playing!

Meet the Team Behind the Mod

This mod is brought to life by a talented group of creators. Here's a look at the amazing people who made it possible:

Key Creators

  • BeepBBop– Director
  • ProgrammerEDM– Programmer
  • kimbaru– Charting
  • neon metro, Myangdoo, Sekilk, noxisnotdead– Animators
  • Rice Thief, Ruon– Musicians
  • ShadowMario– Game Engine

A big shoutout also goes to the originalFriday Night Funkin’team for laying the foundation for such incredible community content:

Original FNF Team

  • ninja_muffin99– Programming
  • PhantomArcade3k and evilsk8r– Artists
  • kawaisprite– Music
  • And everyone who contributed to the open-source project on GitHub.

Crossover Inspiration

This mod cleverly draws from the world ofLibrary of Ruina, a strategic card RPG known for its deep narrative and intense combat. In the mod, you get to experience the tension of that world through music, with each librarian opponent bringing their own flavor to the fight. It's a must-play for fans of both FNF and the Ruina universe.

If you’re a fan of creative crossovers, tight rhythms, and unique storytelling,Library Of Ruinis a mod you won’t want to miss. Test your skills, survive the stacks, and prove you’re more than just a pretty cover!