Credits / Closing Theme (Tracking Device)
Kelly Bailey
Half A Life Here
The DakNongs
Half Life
MKJ, Julie Elody
What They Do
The Roots, Raphael Saadiq
Nuclear Mission Jam (Something Secret Steers Us)
Kelly Bailey
Half A Life Here
w.鹤川
Half A Life Here
原始之音
Klaxon Beat
Kelly Bailey
Section
The Roots
Halflife
Sandra Kolstad
Halflife
Lacuna Coil
The Hypnotic
The Roots, D'Angelo
Adrenaline Horror
Kelly Bailey
Diabolical Adrenaline Guitar (Lambda Core)
Kelly Bailey
Valve Theme [Long Version] (Hazardous Environments)
Kelly Bailey
Half Life
Collars
Half Life (Remix)
W∆W, Valve
Half Life
Whether, I
Half Life
Unknown N., Anas Sameer
Half life
Smerz
Military Precision
Kelly Bailey
Half Life
Forwe兰斯
Hard Technology Rock
Kelly Bailey
Half Life
Djo
Triage at Dawn
Kelly Bailey
Nepal Monastery
Kelly Bailey
Vague Voices (Black Mesa Inbound)
Kelly Bailey
Half Life
Marino Canal, David O'Dowda
Half Life
Appleby
Alien Shock (Biozeminade Fragment)
Kelly Bailey