This article needs clean-up to meet quality standards.
Our community is working hard to rehaul this page. In the meantime, feel free to help improve what's currently written with reference to our Style Guide.
SPOILER WARNING: Gourmand This section contains major plot details from Gourmand. If you have not made significant progress or completed the game as Gourmand, then read no further!
Outer Expanse is a region added in the Downpour DLC. It is separated from the rest of the world by a locked Karma Gate in the westernmost place of Subterranean. It is a lush and lively place, dotted with ruins of the Ancients.
The Outer Expanse is a lush amalgam of sprawling uneven terrain, cavernous networks filled with swathes of overgrowth, and dilapidated ruins in its background. The region is adorned with various massive protrusions of flora, some tinted by a tangerine hue. Its background is dominated by various clouds and the looming presence of the Five Pebbles superstructure.
Due to the Outer Expanse being elevated above the clouds, it does not experience the Rain, instead experiencing a night period in similar manners to the Metropolis. However, certain sub-regions do still experience rain, such as the Sunken Pier.
Outer Expanse is a home to a number of unique creatures, the best known being the Slugcats. The Karma Gate was placed under lock-down by Five Pebbles to keep the creatures of the place from ransacking his and Looks to the Moon's facility grounds. It can be only explored by Gourmand at first, once they meet Five Pebbles. After their ending is completed, the Survivor and the Monk gain access to the region as well.
The outer remains of the Subterranean pier the Ancients used to send supplies to the Iterators. Consists of a network of various catwalk-like structures and rails, elevated over open grey clouds from atop grand towers. The lowermost areas are linear swamplands, casted in darkness and only illuminated by luminescent flora and spotlights. The Sunken Pier is susceptible to the Rain.
The roots of Five Pebbles and Looks to the Moon's water-pumping lymphatic systems. The Spearmaster campaign starts in Outskirts right after exiting the Facility Roots. It acts as a one-way connection to the Outskirts, with the Karma gate leading to an underground pumping station.
The tree-home of the Slugcats seen in Survivor and Monk's opening cut-scenes can be found here. A long drop can be found here, which connects to Outskirts.
SPOILER WARNING: Gourmand
Subterranean 
Outskirts 
Five Pebbles superstructure.
Metropolis. However, certain sub-regions do still experience rain, such as the Sunken Pier.
Slugcats. The Karma Gate was placed under lock-down by _icon.png){kind=icon}
Five Pebbles to keep the creatures of the place from ransacking his and _icon.png){kind=icon}
Looks to the Moon's facility grounds. It can be only explored by 
Gourmand at first, once they meet Five Pebbles. After their ending is completed, the 
Survivor and the 
Monk gain access to the region as well.
Spearmaster campaign starts in Outskirts right after exiting the Facility Roots. It acts as a one-way connection to the Outskirts, with the Karma gate leading to an underground pumping station.
- Monk exclusive
- Survivor exclusive
- Gourmand exclusive
Creatures
Jungle Leech - 
Caramel Lizard • 
Yeek • 
Slugpup - 
Gooieduck
Maps
Safari
Slugcat
Slugcat species.
