Welcome to UNDERTALE. In this RPG, you control a human who falls underground into the world of monsters. Now you must find your way out... or stay trapped forever.features:

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Undertale Snail

Undertale Snail

Role Playing

Play Undertale racing as a snail from the Thundersnail minigame! Interacting makes you faster, like in the Thundersnail minigame.

UnderQuark

UnderQuark

Role Playing

Welcome to UnderQuark, the Undertale mod that makes some things quite different from the vanilla game. The name of the mod is inspired by the name of...

Prunsel from Walmart

Prunsel from Walmart

Role Playing

Replaces Papyrus's sprite with Prunsel. Also replaces the font with just images of Prunsel. If you want to know more, you can read the README file in...

Playable Unused Child!

Playable Unused Child!

Adventure

Howdy, everyone! So, I' make this mod for Undertale, because i am so bored and needed to do some thing, so I make this mod when i searched on the Undertale...

Undertale The NON Determined Edition Collection

Undertale The NON Determined Edition Collection

Role Playing

Welcome to Undertale: The NON Determined Edition! This is a mod for Undertale where Things are replaced By deltarune things. Sort of like that mod called...

Undertale Sans Mod

Undertale Sans Mod

Role Playing

In this fun mod developed by yours truly, you get to enjoy the thrill of Undertale without the boner-killing, boring, nonbinary bitch known as Frisk...

Undertale Remastered Mod v0.8.1

Undertale Remastered Mod v0.8.1

Role Playing

This mod adds massive amounts of color and detail to the battle/dialogue sprites in the game! It will take some time, and several updates, to get a full...

Genocide Bosses in various difficulty levels

Genocide Bosses in various difficulty levels

Role Playing

Inspired by the Contingency Contract event of Arknights. You can play the battle of Undyne the Undying or Sans with many different tags, such as Lower...

Undertale Songreplacement and sans Sprite change

Undertale Songreplacement and sans Sprite change

Role Playing

just a friendly group project Don't hurt me. actually do what you want

Under The Story [Undertale Bad Translation Mod]

Under The Story [Undertale Bad Translation Mod]

Role Playing

Text hack mod for Undertale! All the lines of text have been fed through google translate several times then re imported back into the game. Further more...

UndertaleModTool

UndertaleModTool

Role Playing

This is NOT my tool, all credit to its developers. Undertale mod tool is pretty much the best and only viable way to mod undertale.

sans battle except nagito komaeda

sans battle except nagito komaeda

Role Playing

A mod that only changes the final boss of the genocide route of undertale. Just that. It only works at version 1.001 of undertale, as far as im concerned...

Undertale Music Replacements

Undertale Music Replacements

Adventure

What this mod aims to do is allow players a choice of music to replace the tunes in Undertale! Starting with Megalovania, I will be working through (almost...

Undermix

Undermix

Role Playing

I decided to make a Remix of all the music in the game Undertale, I hope this counts as a mod?) If you think that this is banal and some kind of bullshit...

Undertale, but you're purple guy

Undertale, but you're purple guy

Adventure

This mod replaces frisk with purple guy. Based on "the man behind the slaughter" meme.

Undertale Together (Two players Mod)

Undertale Together (Two players Mod)

Role Playing

A mod where you can play with two characters! You need Undertale 1.08 (steam or gog or win10 or collector's edition or 1.08c version) for the patch to...

SaviourTale Colour Mod

SaviourTale Colour Mod

Role Playing

This is a recolour mod for a work in progress AU called "SaviourTale" that includes reskins for: Chara-> Frisk| Sans->Saviour!Sans| Papyrus(Battle sprite)->Papyrus...

Undertale Mobile Mod

Undertale Mobile Mod

Role Playing

An UNDERTALE mod which adds full mobile support to the game for iOS and Android.

Undertale Orchestral Music Mod 0.3

Undertale Orchestral Music Mod 0.3

Adventure

Undertale Music Mod, the purpose of this creation - adding "112" orchestral, or themes that sound greater than intended for the game. With these new musics...

Stylish Music Mod v1.0

Stylish Music Mod v1.0

Role Playing

With this program writen in .NET Framework you can change 27 in game tracks to all kinds of covers and music easily, or even add yours

Deltarune/Undertale NEON/CLASSIC RELASE

Deltarune/Undertale NEON/CLASSIC RELASE

Role Playing

Maciekf137.wixsite.com DOWNLOAD AND PLAY THIS EDITION/MOD IS MADE FOR "BASS&BEATS; FANS" AND FOR "COVERS FANS" MODS: UNDERTALE NEON/DELTARUNE NEON UNDERTALE...

The SSBU Megalovania (New Remix) Replacement Mod

The SSBU Megalovania (New Remix) Replacement Mod

Role Playing

This mod changes the original Megalovania with the one used in SSBU (with slight tweaks to work in game)

Undertale FrostAwx Changing mod

Undertale FrostAwx Changing mod

Role Playing

this is my first mod and BETA SO DONT BE OFFENDED. this mod replaces every sound (not including talking sounds) Into FrostAwx (my) Voice! Have Fun!

Undertale Music Remix Mod

Undertale Music Remix Mod

Role Playing

This is a mod replacing almost all of the music in game with music made by Undertale remixers and Toby Fox. Only the sans. remix belongs to me. Currently...

MonikaTale

MonikaTale

Role Playing

one mod that replace almost all frisk sprites(don't worry all sprites are replaced except the ones of frisk hugging asriel and the frisk monitor in alphys...

CHARATALE  *Outdated*

CHARATALE *Outdated*

Role Playing

*UPDATE* Mod is outdated! CHARATALE is an UNDERTALE SKIN mod that replaces all in-game player sprites and animations with CHARA. Mod usage discretion...

Underchara

Underchara

Role Playing

A version of Undertale that follows the same storyline, and essentially everything is the same, except Chara has replaced Frisk, and as such, Frisk has...

More Hair Colors

More Hair Colors

Role Playing

Frisk Can Get Some New Hair Style's This is still in beta. Started in Aug, 31, 2016. Colors Are Still To Be Added so If You Can Comment A New Hair Color...

Undertale - Debug Mode (Actual Release!)

Undertale - Debug Mode (Actual Release!)

Role Playing

This is an actual release of an Undertale debug mode release for the latest version. Put in undertale install folder. Commands In Download.

PickyTale

PickyTale

Role Playing

A dumb meme mod that im working on for Undertale with custom dialogue, sprites, and music either made by me or others.