Half-Life 2: Episode Two soundtrack
Using an appropriate program, it is possible to extract all audio tracks heard in-game from the
ep2_pak_dir.vpk archive file. The soundtrack was also included in the game directory of both the full and demo Audiosurf releases on Steam as part of Audiosurf's The Orange Box Soundtrack. On September 24, 2014, the soundtrack was made available as free DLC to all owners of the game on Steam.
* = not present in a given soundtrack.
|The Orange Box OST #||Game #||OST (Steam DLC) #||Track title||Filename||Time||Level location||Comments|
|*||01||04||Extinction Event Horizon||
||2:04||To the White Forest: The very beginning of the chapter, as Gordon is climbing out of the train wreck.||The title is likely indicative of the impending return of multitudinous Combine forces through the Citadel's superportal, which would result in a genocide of humanity, or an extinction event, and how this, for humanity's survival, would be an inescapable "point of no return," which in layman's terms is what an event horizon is in regards to spacetime in astrophysics.|
||3:14|| This Vortal Coil: During the final wave of the Antlion attack, in which the vortigaunts assist Gordon Freeman in the fight.
The song can also be heard during part of the Portal teaser trailer.
|The title is a pun on both Vortigaunts and the Mortal Kombat game series.|
||1:47||This Vortal Coil: When the Victory Mine Vortigaunt finds the larval extract.|
||1:50||This Vortal Coil: During the G-Man sequence, when the G-Man talks to Gordon as the Vortigaunts attempt to heal Alyx.|
||1:14||Freeman Pontifex: Near one of the radioactive lakes.|
|*||06||*||Industrial Suspense 1||
||0:12||Riding Shotgun: Upon finding the dead rebel before encountering the Barn Advisor.||This track also appears in Half-Life 2.|
||2:38||Riding Shotgun: During the scene with the Barn Advisor.||This track title is a reference to the Vortigaunt name given to the Combine Advisors.|
||2:46||Riding Shotgun: During the Combine ambush directly after the meeting with the Barn Advisor.||In the console versions of The Orange Box, this song is played at the main menu for the Episode Two screen.|
||3:29||Riding Shotgun: During the Hunter ambush.|
|*||10||01||No One Rides For Free||
||1:02||Under the Radar: When first driving away from the junkyard after destroying the Autogun.|
||3:13||Under the Radar: During the ambush at the White Forest Inn.|
|06||12||09||Abandoned In Place||
||2:47||Our Mutual Fiend: During the Combine invasion of the White Forest Base, during the mission to close the second silo.|
||2:07||Our Mutual Fiend: When fighting the second wave of Striders and Hunters during the attack on the missile silo.|
||1:35||T-Minus One: Starts during the final scene and continues over the credits.||Also plays in Half-Life 2: Lost Coast, when first entering the St. Olga monastery.|