Question: Mike Morasky is an American composer best known for his work for a video game developer headquartered in which city ?

Context articles: KAZe
Nival (company)
Vir2L Studios
Mike Morasky
Evolution Studios
Slipgate Studios
Mighty Rocket Studios
Snapshot Games
Id Software
Valve Corporation

KAZe Net Co.,Ltd. (Japanese: カゼ・ネット , Hepburn: Kaze Netto ) is a video game developer headquartered in Aoyama, Tokyo, Japan.
Nival is a European video game developer headquartered in Limassol, Cyprus, with development offices in St. Petersburg, Russia, and Moscow, Russia.
 It was founded by Russian games industry veteran Sergey Orlovskiy in 1996, who currently serves as company CEO.
Vir2L Studios was a video game developer headquartered in Washington, D.C..
 Vir2L Studios created a range of game content, from simulation games to role-playing games and adventure, including multiplayer or single-player from text-based to animated or 3D titles.
Mike Morasky is an American composer, animator/visual effects artist, director and programmer.
 He is best known for his work at Valve Corporation composing the scores for "Portal", "Portal 2", "Team Fortress 2", and the "Left 4 Dead" series.
 He is also known for his visual effects work on "The Lord of the Rings" and "The Matrix" trilogies as well as founding the underground art bands Steel Pole Bath Tub, Milk Cult and DUH.
Evolution Studios Ltd. was a British video game developer headquartered in Runcorn, Cheshire.
 The company was founded in 1999 by Martin Kenwright and Ian Hetherington, following the purchase of their studio Digital Image Design's publisher Ocean Software by Infogrames.
 Kenwright then left Digital Image Design with six members of staff to form Evolution Studios.
Slipgate Studios (formerly Interceptor Entertainment) is a Danish video game developer headquartered in Aalborg, Denmark.
 The company's policy encourages its staff to work from home.
 This has led to the development team becoming international in its composition, employing developers from ten different countries.
 The distribution of work tasks and discussion of progress is done virtually, through a private company forum.
Mighty Rocket Studios, formerly Hydravision Entertainment, is an indie video game developer headquartered in France.
 The company is known for developing "ObsCure" and "ObsCure II".
Snapshot Games is an independent video game developer headquartered in Sofia, Bulgaria.
 Snapshot Games was founded in 2013 by Julian Gollop and David Kaye.
 Gollop is widely recognized for creating the "X-COM" video game franchise in the 1990s with "" and "" Gollop also is the CEO of Snapshot Games.
 In addition to Gollop, the company includes about eight developers who are industry veterans with years of previous experience working for Ubisoft Sofia, Crytek Black Sea, and other Bulgaria studios.
 On June 8, 2017, the company announced that they will employ a team of about thirty developers by the end of the year.
id Software LLC ( ; see Company name) is an American video game developer headquartered in Dallas, Texas.
 The company was founded on February 1, 1991, by four members of the computer company Softdisk, programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack (no relation to John Carmack).
 Business manager Jay Wilbur was also involved.
Valve Corporation is an American video game developer and digital distribution company headquartered in Bellevue, Washington.
 The company is known for its software distribution platform Steam and the "Half-Life", "Counter-Strike", "Portal", "Day of Defeat", "Team Fortress", "Left 4 Dead", and "Dota 2" games.