The Lambda Wars soundtrack was composed by Scott "Sbeast" Houghton and Mr.Neyus. Using an appropriate program, it is possible to extract all audio tracks heard in-game from the
pak01_dir.vpk archive file.
Houghton's goal with the music was to write original songs that were both reminiscent of the soundtracks from Half-Life, Half-Life 2 and subsequent Episodes, but also had a fresh and new sound to them.
 Track listing
|Divorce||Mr.Neyus||3:16||Main Menu||Features a sped-up drum beat from CP Violation.|
|A New Revolution||Sbeast||2:49||During a match||This song was written to represent the revolution taking place by the Resistance faction, as they begin to fight back against the Combine forces. It is a fast paced, beat driven song with the main focus on the drum beat and dissonant, rhythmic bassline. It also features distorted electric guitars, synth pads, synth leads and other percussion.|
|Atmospheric Disturbances||Sbeast||2:14||During a match|
|Endangered Specimen||Sbeast||2:43||During a match||This song was initially made as a dynamic music test which had several levels of intensity. Houghton decided to have it as a normal song which continued to build in layers as it progressed.|
|Fight and Flight||Sbeast||2:42||During a match|
|Glowstick||Sbeast||2:47||During a match||Initially, Glowstick was meant be an Antlion-themed battle song. It uses synth leads and synth pads to create an Alien-esque atmosphere, with pounding drums and bassline to complement it.|
|Now is the Hour||Sbeast||2:58||During a match||A song to represent the uprising of the Resistance faction. It starts off very atmospheric with few textures and sounds, then builds up towards a pumping beat with drums, bass and synthesizers.|
|Transmission||Sbeast||2:14||During a match|
|Uprising||Sbeast||2:38||During a match|
|Dynamic A level 1||Sbeast||1:36||Does not appear in the mod|
|Dynamic A level 2||Sbeast||1:36||Does not appear in the mod|
|Dynamic A level 3||Sbeast||1:36||Does not appear in the mod|