The Outer Dimension

"``Now think of this place as a.. TV with infinite channels, ya know? Unrestricted, and unlimited. A gateway to every verse to what you’d consider fiction. ``"

The Outer Dimension
A realm, created by "Sans the Skeleton". A reality, influenced by his endless curiosity. The fictional realities of Undertale, and all fictional realities, all connected by this endless area, sustained each other, creating reality after reality. Realities branching off realities that they didn't know existed, stories of knights and monsters being told in millions of ways, each being its own verse of uniqueness. Endless timelines.. Multiverses.. Fictional verses in general, all able to be accessed through a simple portal through the infinite others in The Outer Dimension. But the weak minded could not enter, the willpower of many was too lacking, so only the strong-minded could break into the preposterous plains of alternate paths. As, one of the many ways to access the Reality was through sheer will power.

Origin:
In most circumstances, The Figure uses the Outer Dimension to specifically scrutinize fictional verses that grabs hold of his interest. The Outer Dimension was constructed by The Figure as what is described as a "Infinite plain white reality", the reason being that fictional verses see no end.

One of the main purposes, or reasons for the creation of the Outer Dimension, was to create somewhat of a "hub", that can be used to not only view other fictional verses, but to act as somewhat a method for transportation that used for means, such as fictional travel. Once the Outer Dimension was completed, "Sans the Skeleton" felt felt fulfilled, and satisfied with his completion. The creation of The Outer Dimension. highly benefited, and contributed to everything that "Sans the Skeleton" strived for in the end.

"Sans the Skeleton" spent a large majority of his time in the Outer Dimension, "Sans the Skeleton". "Sans the Skeleton" enjoyed living out what he's dealt and dealing at the same time, forming a infinite reality to stare and gauge on upon it all, glare onto the infinite reaches.

Access:
Being able to access the Outer Dimension can be determined by one's will to. There are other ways, but this is one of the most common.

Characteristics:
The Outer Dimension is a infinite reality that has infinite worm holes / portals to any sort of fictional verse, or realm. Every single timeline, Multiverse, Fictional Verse, it all can be accessed through The Outer Dimension.