Prepare yourselves, little ones. The only way through is down. 

The Little Nightmares universe is being adapted into a new comic book series called "Descent to Nowhere":

This limited, four-issue series, produced in partnership with Titan Comics, will begin in 2025, exploring the link between the distorted terrors of the Nowhere, and the sullen humdrum of the Counties. 

Look for more announcements of the new Little Nightmares comic series very shortly!