Credits / Closing Theme (Tracking Device)
Kelly Bailey
Klaxon Beat
Kelly Bailey
Nuclear Mission Jam (Something Secret Steers Us)
Kelly Bailey
Hazardous Enviroments
Kelly Bailey
听什么都像唱自己
半条命
Sector Sweep
Kelly Bailey
Still Alive
Jonathan Coulton, GLaDOS
隔壁老樊-我曾 DJ版（陈壹阳 remix）
半条命
Valve Theme [Long Version] (Hazardous Environments)
Kelly Bailey
最后一次的分离(cover)
半条命
Lambda Core
Kelly Bailey
Adrenaline Horror
Kelly Bailey
脱离(心纯净 血dirty)
红血热, 半条命, 小跳刀
Lab Practicum
Kelly Bailey
Vortal Combat
Kelly Bailey
Vague Voices (Black Mesa Inbound)
Kelly Bailey
Last Legs
Kelly Bailey
难于不难
半条命
Brane Scan
Kelly Bailey
Combine Harvester
Kelly Bailey
静静-半条命DJ（静静 remix）
静静
Tracking Device
Kelly Bailey
Penultimatum
Kelly Bailey
你我最后终是过客
半条命
Something Secret Steers Us
Kelly Bailey
Hazardous Environments
Valve
Diabolical Adrenaline Guitar (Lambda Core)
Kelly Bailey
You're Not Supposed to Be Here
Kelly Bailey
自闭症
半条命
可遇不可求
半条命