Credits / Closing Theme (Tracking Device)
Kelly Bailey
Klaxon Beat
Kelly Bailey
Tracking Device
Kelly Bailey
Nuclear Mission Jam (Something Secret Steers Us)
Kelly Bailey
Lambda Core
Kelly Bailey
Something Secret Steers Us
Kelly Bailey
Hazardous Enviroments
Kelly Bailey
Combine Harvester
Kelly Bailey
Diabolical Adrenaline Guitar (Lambda Core)
Kelly Bailey
You're Not Supposed to Be Here
Kelly Bailey
受伤的翅膀
半条命
Hard Fought
Kelly Bailey
Dark Energy
Kelly Bailey
Valve Theme [Long Version] (Hazardous Environments)
Kelly Bailey
Adrenaline Horror
Kelly Bailey
自闭症
半条命
浪漫至死(Romantic Till Death)
半条命
Pulse Phase
Kelly Bailey
Vortal Combat
Kelly Bailey
Echoes of a Resonance Cascade
Kelly Bailey
你我最后终是过客
半条命
Tau-9
Kelly Bailey
Triage at Dawn
Valve
你是我女朋友 烟嗓（翻自 难言x）
半条命
菩提树下叹忧伤q
半条命
生不如死
半条命
最后一次的分离(cover)
半条命
脱离(心纯净 血dirty)
红血热, 半条命, 小跳刀
写给山鬼听
半条命
再见了刺激战场
半条命