FNF DoomsDay but Sans is a Lean Drinker

Rating:4.5 (182 votes)
Released:November 19, 2025
Technology:HTML5 (Unity WebGL)
Platforms:Browser (desktop, mobile, tablet)

Get Ready to Funk with a Doomsday Twist

Dive into the wild world ofFriday Night Funkin'withFNFDoomsDay butSansis a Lean Drinker, a fan-made mod that brings together some ofUndertale’s most iconic characters for an unforgettable musical showdown. Featuring a high-energy cover of the hit 'Doomsday' track, this mod gives players a chance to face off against Chara, Sans, and Paps in a rhythm battle like no other.

This online port makes the mod more accessible than ever, so you can enjoy it right in your browser—no downloads or powerful PC required!

What Is FNF DoomsDay but Sans is a Lean Drinker?

Originally created as part of the broaderDoomsday Dusttale Coverproject, this FNF mod reimagines the intense and emotional 'Doomsday' song fromMistful Crimson Morning Mod. In this version, you'll be playing through a tripped-out, emotionally charged performance featuring:

  • Sans: The laid-back, bone-tossing hero with a twist—he's sippin’ on some lean!
  • Chara: The edgy, mysterious protagonist of the Underground, ready to bring the heat.
  • Paps: Lending his smooth voice to round out the trio in this hauntingly catchy cover.

The mod was lovingly crafted byBlueBirds, who worked to bring this unique take to life. Whether you're a die-hard FNF modder or a newcomer to the scene, this one's got plenty of flavor to keep you engaged from start to finish.

Gameplay and Visuals

The mod keeps the classic FNF formula but adds a unique visual and audio flair. With trippy animations, custom character designs, and a moody, intense atmosphere, it’s a treat for both the ears and eyes. The cover of 'Doomsday' is packed with energy, and the added voice acting gives the performance even more depth and personality.

Thanks to the online port, you can now experience the mod in your browser, making it perfect for those on Chromebooks, Macs, or low-end PCs. It's a great way to enjoy the mod without taking up valuable hard drive space or dealing with EXE compatibility issues.

Mod Creators and Contributors

This mod is a collaborative effort, built on the passion and creativity of the FNF modding community. Here’s a look at the talented people behind the scenes:

DoomsDay but Dusttale Cover Team

ContributorRole
BlueBirdsMod Creator
WassabiSojaOriginal Cover Creator
VruzzenComposer of Original Doomsday

Game Engine Team

NameContribution
ShadowMarioMain Programmer
YoshubsAssistant Programmer
River OakenMain Artist / Animator
bbpanzuEx-Programmer
+ GitHub CommunityAdditional Contributions

Original FNF Credits

NameRole
ninja_muffin99Programming
PhantomArcade3k / evilsk8rArtists
kawaispriteMusic
+ GitHub CommunityOpen Source Development

Play Anytime, Anywhere

This web-optimized version of the mod ensures that more players can jump in and enjoy the action, regardless of their device. While some features or mechanics may differ slightly from the full PC version, it’s still a solid and fun way to experience the mod.

If you’re on a Windows, Mac, or Linux machine and want the full experience, consider downloading the original mod. But for quick sessions or on-the-go play, the online version is a fantastic alternative.