Credits / Closing Theme (Tracking Device)
Kelly Bailey
Tracking Device
Kelly Bailey
隔壁老樊-我曾 DJ版（陈壹阳 remix）
半条命
Something Secret Steers Us
Kelly Bailey
听什么都像唱自己
半条命
半条命
静静
λ
α·Pav
Combine Harvester
Kelly Bailey
Lambda Core
Kelly Bailey
Apprehension and Evasion
Kelly Bailey
Valve Theme [Long Version] (Hazardous Environments)
Kelly Bailey
Vortal Combat
Valve
最后一次的分离(cover)
半条命
写给山鬼听
半条命
Shadows Fore and Aft
Kelly Bailey
Nuclear Mission Jam (Something Secret Steers Us)
Kelly Bailey
LG Orbifold
Kelly Bailey
你是归宿烟是救赎
半条命
受伤的翅膀
半条命
群星-执着（弹鼓版）（另类人 / 林柯轩 remix）
半条命, 林柯轩
Brane Scan
Kelly Bailey
Klaxon Beat
Kelly Bailey
过江水
半条命
你我最后终是过客
半条命
Echoes of a Resonance Cascade
Kelly Bailey
时间能原谅
半条命
Looking Star
半条命
Last Legs
Kelly Bailey
Triple Entanglement
Kelly Bailey
You're Not Supposed to Be Here
Kelly Bailey