| Adrenaline Horror |
| Vague Voices (Black Mesa Inbound) |
| Klaxon Beat |
| Space Ocean (Echoes of a Resonance Cascade) |
| Cavern Ambiance (Zero Point Energy Field) |
| Apprehensive Short |
| Bass String Short |
| Hurricane Strings (Neutrino Trap) |
| Diabolical Adrenaline Guitar (Lambda Core) |
| Valve Theme [Long Version] (Hazardous Environments) |
| Nepal Monastery |
| Alien Shock (Biozeminade Fragment) |
| Sirens in the Distance (Triple Entanglement) |
| Nuclear Mission Jam (Something Secret Steers Us) |
| Scared Confusion Short |
| Drums and Riffs (Tau-9) |
| Hard Technology Rock |
| Steam in the Pipes (Negative Pressure) |
| Electric Guitar Ambiance (Escape Array) |
| Dimensionless Deepness (Dirac Shore) |
| Military Precision |
| Jungle Drums |
| Traveling Through Limbo' (Singularity) |
| Credits / Closing Theme (Tracking Device) |
| Threatening Short (Xen Relay) |
| Dark Piano Short |
| Sharp Fear Short |
| Adrenaline Horror |
| Vague Voices (Black Mesa Inbound) |
| Klaxon Beat |
| Space Ocean (Echoes of a Resonance Cascade) |
| Cavern Ambiance (Zero Point Energy Field) |
| Apprehensive Short |
| Bass String Short |
| Hurricane Strings (Neutrino Trap) |
| Diabolical Adrenaline Guitar (Lambda Core) |
| Valve Theme [Long Version] (Hazardous Environments) |
| Nepal Monastery |
| Alien Shock (Biozeminade Fragment) |
| Sirens in the Distance (Triple Entanglement) |
| Nuclear Mission Jam (Something Secret Steers Us) |
| Scared Confusion Short |
| Drums and Riffs (Tau-9) |
| Hard Technology Rock |
| Steam in the Pipes (Negative Pressure) |
| Electric Guitar Ambiance (Escape Array) |
| Dimensionless Deepness (Dirac Shore) |
| Military Precision |
| Jungle Drums |
| Traveling Through Limbo' (Singularity) |
| Credits / Closing Theme (Tracking Device) |
| Threatening Short (Xen Relay) |
| Dark Piano Short |
| Sharp Fear Short |