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A dating sim about a girl who never leaves her bedroom.

Flirt with some of your favorite Sanses (minus a few) and that's it. (or is it?...)

A visual novel where you can have a date with Sans! But wacky hijinks and chaos ensues potentially ruining your date!

NYE HEH HEH!

Six human SOULs are trapped in the Realm of Dreams. Your ruler has ordered you to rescue them.

COMPLETED: Play as a customizable "Frisk" through a kingdom of hostile monsters.

Play as a customizable MC who has fallen into a kingdom of starved and half-mad monsters.

COMPLETE: Play as a customizable Chara who has fallen into a hidden monster kingdom under Lake Ebott.

Frisk fights against the Winter itself

this was not by me it was by this guy philiplol the game from scratch

A lockdown during a crisis. You can't go anywhere. At least not until a portal to a magical land opens in your bedroom.

An UNDERTALE Photoshop Flowey battle re-imagining.

You don't know where you are. You don't know who you are. All you know is that you have to find [REDACTED].

A visual novel centered around the player romancing DJ Blook and Metta from the Undertale AU: Underswap.

Undertale Customs

This is a fan battle where you fight Kirby during the fun gang travel to Dreamland

Undertale platformer fan-game, for mobile and PC. Challenging.

Made in the style of the game Undertale, and the plot of the game is based on the animation of Underverse.

A Short Visual Novel where you get to date the skeleton of your dreams.

COMPLETED Can you give this story a happy ending?

Wonder what if undertale was made back in 1989? check out this nice Gameboy ROM i created!

Undertale Fan Project

Can you avoid social interactions in time to make it to the bathroom?

A Dating Sim Where Everyone is Undateable!

Can you fight and solve your way to freedom from an obsessed, love-struck sheep?

Your life will be turned upside down!

Undertale Dating sims

The game where you can finally date (or not) the robot

THE LEGENDARY INDIE GAME OF ALL TIME, BANNED FROM STEAM SENCORED BY THE GOVT. BENBO QUEST ILLEGL CONTRABANT

This is a unofficial Undertale fangame, in the style of a dating sim.