Portal soundtrack

Steam album artwork.

Most of Portal's soundtrack is non-lyrical ambient music composed by Kelly Bailey and Mike Morasky, somewhat dark and mysterious to match the mood of the environments. It was released in part on The Orange Box Original Soundtrack, which includes both GLaDOS's in-game rendition and Jonathan Coulton's vocal mix of the closing credits song, "Still Alive".

"Still Alive" was written by Jonathan Coulton and sung by Ellen McLain as the GLaDOS character. A brief instrumental version of Still Alive is played in an uptempo Latin style over radios in-game. Erik Wolpaw noted that Coulton was invited to Valve a year before the release of Portal, before it was clear where Coulton would contribute. Wolpaw stated: "Once Kim [Swift] and I met with him, it quickly became apparent that he had the perfect sensibility to write a song for GLaDOS." The use of the song over the closing credits was based on a similar concept from the game God Hand, one of Wolpaw's favorite titles. The song was released as a free downloadable song for the music video game Rock Band on April 1, 2008.

Using an appropriate program, it is possible to extract all audio tracks heard in-game from the portal_pak_dir.vpk archive file. Portal's 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. Additionally, on October 30, 2012, it was released as the fourth volume in a four-disc retail release, Portal 2: Songs To Test By (Collector's Edition), featuring music from both games. On September 25, 2014, the soundtrack was made available as free DLC to all owners of the game on Steam.

Track listing

* = not present in a given soundtrack.

The Orange Box OST #	Game #	Steam OST #	Track title	Filename	Time	Level location	Comments
*	01	02	Taste of Blood	portal_taste_of_blood.mp3	3:06	Test Chamber 02: Shortly before obtaining the blue Portal Gun.	The title is a reference to GLaDOS' description of the Aperture Science Material Emancipation Grill in Test Chamber 02.
*	02, 09	05	Procedural Jiggle Bone	portal_procedural_jiggle_bone.mp3	4:34	Test Chamber 08: At the beginning of the Test Chamber. (first instance) Test Chamber 19: At the beginning of the Test Chamber. (second instance)	Also plays in the menu screen.
14	03, 06	04	Self Esteem Fund	portal_self_esteem_fund.mp3	3:30	Test Chamber 10: When approaching the first momentum puzzle. (first instance) Test Chamber 14: After acquiring the Weighted Storage Cube and leaving the area where it was found. (second instance)	The title is a reference to a sentence said by GLaDOS in Test Chamber 15.
13	04	01	Subject Name Here	portal_subject_name_here.mp3	1:44	Test Chamber 11: When riding the Aperture Science Unstationary Scaffold leading to the Dual Portal Device podium.	The title is a reference to a sentence said by GLaDOS in Test Chamber 06.
*	05, 08	03	Android Hell	portal_android_hell.mp3	3:45	Test Chamber 13: When entering the main room. (first instance) Test Chamber 18: When entering the large room full of Aperture Science Sentry Turrets. (second instance)	The title is a reference to a sentence said by GLaDOS at the end of Test Chamber 16.
*	07	06	No Cake For You	portal_no_cake_for_you.mp3	4:05	Test Chamber 16: When entering the first Ratman den.
15	10	07	4000 Degrees Kelvin	portal_4000_degrees_kelvin.mp3	1:01	Test Chamber 19: When approaching the fire pit.	Also plays during the second half of the Portal announcement trailer. The title is a reference to a sentence said by GLaDOS at the end of Test Chamber 19. This track features the "Beat 42", "Beat 43", and "Beat 46" audio samples included in Sony's Methods of Mayhem: Industrial Toolkit sample album.
16	11	08	Stop What You Are Doing	portal_stop_what_you_are_doing.mp3	3:57	Escape: After escaping the fire pit.	The title is a reference to a sentence said by GLaDOS in the maintenance areas of Aperture Science.
*	12	09	Party Escort	portal_party_escort.mp3	4:21	Escape: Just before and during the first encounter with the Rocket Turret.	The title is a reference to a sentence said by GLaDOS when Chell escapes from the fire pit as well as the Party Escort Bot.
17	13	10	You're Not A Good Person	portal_youre_not_a_good_person.mp3	1:22	Escape: During the massive Sentry Turret ambush.	The title is a reference to a sentence said by GLaDOS in the maintenance areas of Aperture Science.
18	14	11	You Can't Escape, You Know	portal_you_cant_escape_you_know.mp3	6:14	Escape: During the boss fight with GLaDOS.	The title references to a sentence said by GLaDOS in the maintenance areas of Aperture Science, though with a slight change.
1	15	12	Still Alive	portal_still_alive.mp3	2:56	Credits
19	*	13	Still Alive (J.C. Version)	-	2:56	Credits Remix from The Orange Box Original Soundtrack.	Version of the song performed by Jonathan Coulton.
*	*	*	Still Alive (Aperture Science Radio version)	looping_radio_mix.wav	0:21 (loops)	Radios found throughout the game.	Easy listening / Latin instrumental version of Still Alive played on 85.2 FM on the radios. The in-game closed captions describes the track as "[Peppy Music]". In the early stages of the game's production (2005), the stock merengue instrumental "Mirame" was used as a placeholder, which was also used by Valve in the Counter-Strike: Source map Inferno, and is also featured in Counter-Strike: Global Offensive. The final version of the song also appears in Aperture Hand Lab and Valve's promotional video "Steam Remote Play Together". Added to the Portal 2 soundtrack along with a clean version on December 6, 2022.

External links

• Portal Soundtrack on Steam