1 Natural Light
2 Interfacing
3 Arrival
4 Aperture Central
5 The Spheres
6 Deep Sleep
7 Waking up to Science
8 Testing Begins
9 Adjacency
10 Out of Order
11 Acceleration
12 Firestorm
13 The Junkyards
14 The Junkyard Offices
15 Welcome to the Future
16 Welcome to the Future (Funnel)
17 Long Way Down
18 Long Way Down (Funnel)
19 Obscuration
20 Obscuration (Funnel)
21 Transitional Period
22 Transitional Period (Funnel)
23 Natural Light (Funnel)
24 Troubled Water
25 Troubled Water (Funnel)
26 Testing With Nature
27 Testing With Nature (Funnel)
28 Skototropism
29 Skototropism (Funnel)
30 Halted Production
31 Live Fire Exercise
32 Live Fire Exercise (Funnel)
33 System Corruption
34 Decades of Science
35 The Best the World Had to Offer
36 Mel's Story
37 Troubled Water (Trailer Theme)
38 Waking up to Science (Menu)
39 Adjacency (Menu)
40 System Corruption (Alternate)
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