In 1996, he entered Sierra after leaving college; there he remained for 7 years. During that time, he designed sound effects, recorded and edited dialog for Half-Life: Opposing Force in 1999 and Half-Life: Blue Shift in 2001.
In 2001 he also composed music and designed sound effects for the main menu of the PlayStation 2 version of Half-Life, as well as recording and editing additional dialog, and composing the music for promotional trailer. For that work he was called at the last minute. A loop of only 53 seconds long, the main menu music was composed with synthesizers (this is the pieced used for the main menu of the PC port of Half-Life: Decay).
He also created the Sierra splash screen sound featured in every Sierra game published between 1998 and 2001, familiar to the Half-Life gamers before Steam. The video itself was created by Valve's Jeff Lane.
He worked on numerous video games, promotional trailers, prototypes, and other miscellaneous projects.
He also composed many classical/choir music pieces.
He also co-founded "Sound Currents", a group of Seattle composers dedicated to presenting fresh, new, creative music through concerts in Shanghai, where Houge resides.
- Tom Clancy's EndWar (2009)
- Brothers in Arms: Road to Hill 30 (2005)
- Hoyle Casino Empire (2002)
- Arcanum: Of Steamworks & Magick Obscura (2001)
- Half-Life: Blue Shift (2001)
- Half-Life (2001) (PlayStation 2 version)
- Ground Control (2000)
- Gabriel Knight 3: Blood of the Sacred, Blood of the Damned (1999)
- Half-Life: Opposing Force (1999)
- SWAT 3: Close Quarters Battle (1999)
- King's Quest: Mask of Eternity (1998)
- Sierra's splash screen (1998)
- Leisure Suit Larry's Casino (1998)
- Leisure Suit Larry: Love for Sail! (1996)