Credits / Closing Theme (Tracking Device)
Kelly Bailey
Triage at Dawn
Valve
Klaxon Beat
Kelly Bailey
Lambda Core
Kelly Bailey
半条命
静静
Hard Fought
Kelly Bailey
Something Secret Steers Us
Kelly Bailey
Echoes of a Resonance Cascade
Kelly Bailey
Vortal Combat
Kelly Bailey
Nuclear Mission Jam (Something Secret Steers Us)
Kelly Bailey
Hazardous Enviroments
Kelly Bailey
最后一次的分离(cover)
半条命
You're Not Supposed to Be Here
Kelly Bailey
Diabolical Adrenaline Guitar (Lambda Core)
Kelly Bailey
Valve Theme [Long Version] (Hazardous Environments)
Kelly Bailey
写给山鬼听
半条命
Brane Scan
Kelly Bailey
Tracking Device
Kelly Bailey
Dark Energy
Kelly Bailey
生不如死
半条命
Apprehension and Evasion
Kelly Bailey
听什么都像唱自己
半条命
受伤的翅膀
半条命
Adrenaline Horror
Kelly Bailey
自闭症
半条命
你是我女朋友 烟嗓（翻自 难言x）
半条命
脱离(心纯净 血dirty)
红血热, 半条命, 小跳刀
Pulse Phase
Kelly Bailey
Zero Point Energy Field
Kelly Bailey
Neutrino Trap
Kelly Bailey