Sublevels
Unnumbered Levels
Level 0 - Tutorial Level
Level 1 - Habitable Zone
Level 2 - Pipe Dreams
Level 3 - Electrical Station
Level 4 - Abandoned Office
Level 5 - Terror Hotel
Level 6 - Lights Out
Level 7 - Thalassophobia
Level 8 - Cave Systems
Level 9 - The Suburbs
Level 10 - Bumper Crop
Level 11 - The City That Never Sleeps