Normal Levels
Levels 0-99
Level 0 - "Tutorial Level"
Level 1 - "Industrial Warehouse"
Level 2 - "Utility Halls"
Level 3 - "Electrical Station"
Level 4 - "Blue Office"
Level 5 - "Terror Hotel"
Level 6 - "Lights Out"
Level 7 - "Thalassophobia"
Level 8 - "Cave System"
Level 9 - "Desolate Suburbs"
Level 10 - "Bumper Crop"
Level 11 - "Concrete Jungle"
Level 12 - "Matrix"