#videogames 
## Chronologically
1.  Vague Voices - plays during the tram ride.
2.  Klaxon Beat - plays when Gordon picks up his suit
3. Space Ocean - plays after the Resonance Cascade in "Unforeseen Consequences"
4. Cavern Ambience - plays on the "Headcrab elevator" in "Unforeseen Consequences"
5. Apprehensive Short - plays in the beginning of "Office Complex"