If anything dealing and/or associated with mental illnesses/disorders bothers you in any way, please leave this Wiki, as that is one of the main focuses of this Undertale AU.
An OC by the name of Mental!Luca claims to be from this AU, but has nothing to do with it and is not affiliated with it in any way.
MentalTale Wiki
This is the Wiki devoted to the Undertale AU MentalTale, where the Underground is now a mental hospital.

All credits for Undertale and its related content are given to Toby Fox.

MentalTale is an Alternate Universe where monsters live with humans on the surface, and the Underground has been converted into a Mental Hospital called the Underground Mental Hospital, or UMH for short. It is facilitated by Asgore and Toriel. This hospital houses both humans and monsters who, when found to be mentally unstable are thrown into Mount Ebott. However, some humans and monsters have evaded being thrown into Ebott, and reside among their 'sane' counterparts.

Frisk (who, in this AU is a 17-year-old female) wanders off from her home one day and, as in the original Undertale story, falls into Mount Ebott. However, once she'd fallen Toriel is waiting and escorts her into the hospital. There she meets with Asgore before being recorded and taken to the main lobby for observation. It doesn't take long for Toriel and Asgore to see that Frisk is sane, and they let her go (possibly to help them facilitate the patients, or to leave in any way she can). Some of the monsters/humans Frisk meets are rather nice, and Frisk helps them see that their disorders don’t define them.

However, other monsters/humans have been consumed by their mental issues and are beyond help (or so it seems). These monsters/humans go after Frisk, jealous of the sanity she possesses. However, Frisk might be able to convince a monster or two to help her escape, if she plays her cards right. Frisk's ultimate goal is to leave the Underground and return home.

Latest Activity
DO NOT edit this wiki without the creator's permission. It is still under high construction, and if people start editing the creator may lose track of things.
The Poll section currently is not active. Please check back later.
Official Links
The Official Links section currently is not active. Please check back later.

Community content is available under CC-BY-SA unless otherwise noted.