A video game developer is a software developer that specializes in video game development – the process and related disciplines of creating video games.
 A game developer can range from one person who undertakes all tasks to a large business with employee responsibilities split between individual disciplines, such as programming, design, art, testing, etc.
 Most game development companies have video game publisher financial and usually marketing support.
 Self-funded developers are known as independent or indie developers and usually make indie games.
Carbonated Games was the first-party game developer studio for Microsoft Casual Games in Microsoft Studios.
 It was founded and run by Joshua Howard, and was active from 2004 until its disbanding on March 27, 2008.
 Carbonated Games developers were located in Redmond, WA; Hyderabad, India; and Beijing, China.
 Its alumni went on to Hidden City Entertainment, Microsoft Aces (Microsoft Flight Simulator), Blizzard Entertainment, Hourglass Games, the Microsoft Xbox Live Arcade group, GameHouse, Amazing Society, Realtime Worlds, Playdom, PopCap Games, Crytek, Griptonite Games, and DigiPen Institute of Technology.
 During its tenure, the studio created games for Xbox Live Arcade, MSN Messenger, MSN Games, and Microsoft Surface, including:
Hexic is a 2003 tile-matching puzzle video game developed by Carbonated Games for various platforms.
 In Hexic, the player tries to rotate hexagonal tiles to create certain patterns.
 The game is available on Windows, Xbox 360, Windows Phone, and the web.
 The game was designed by Alexey Pajitnov, best known as the creator of "Tetris".
 While most earlier releases of the game were developed by Carbonated Games, the most recent version released for Windows and Windows Phone is developed by Other Ocean.
 The name is a pun on the word "hectic" and "hexagons".
Ruffian Games is a British video game developer founded in 2008.
 The developer was formed by two members, Billy Thomson and Gaz Liddon, of the video game developer Realtime Worlds.
 Ruffian Games originally consisted of members from Realtime Worlds and Xen Studios, among others.
 They have made "Crackdown 2", the sequel to the 2007 video game, "Crackdown".
Crytek GmbH is a German video game and software developer, based in Frankfurt, Germany.
 Founded by Turkish German brothers Cevat, Avni and Faruk Yerli in Coburg in September 1999 and moved to Frankfurt in 2006, Crytek also operates further studios in Kiev and Istanbul.
Telenet Japan Co., Ltd. (株式会社日本テレネット , Kabushiki-gaisha Nihon Terenetto ) was a Japanese video game and software developer founded in October 1983 by Kazuyuki Fukushima.
 The company was also known as Nippon Telenet (or Nihon Telenet).
 The company was best known for the "Valis" series as well as its Wolfteam, Laser Soft and RiOT divisions (the former of which created Tales of Phantasia, the first game in the "Tales" series).
 The company's North American subsidiary, Renovation Products was eventually acquired by Sega.
 The company closed its doors on October 25, 2007.
 Currently, Sunsoft has acquired Telenet's entire software library, with plans of re-releasing old titles for Virtual Console or remaking them.
Rainbow Arts was a German video game developer founded in 1984 in Gütersloh by Marc Ulrich which was later bought by Funsoft, and eventually absorbed by THQ in 1999.
 In the early 1990s most of the company's creative developers left to start their own development studios, such as Thomas Hertzler, who is now Managing Director of Blue Byte, and Armin Gessert, who founded Spellbound Entertainment.
 Rainbow Arts arose from a split of a former software company, micro-partner, founded by Marc Ullrich, Thomas Meiertoberens and Rolf Lakaemper.
 Parallel to Ullrich creating RainbowArts, Meiertoberens/Lakaemper founded Magic Bytes, a game software company, also located in Gütersloh, NRW, Germany.
 Rainbow Arts and Magic Bytes can be seen as the first commercial German game software companies.
Yager Development GmbH is an independent German video game developer founded in 1999 by 5 developers and artists.
 They are most known for developing "Yager" in 2003, "" in 2012 with 2K Games.
 They later began work on "Dead Island 2" together with Deep Silver, however Deep Silver cut ties with Yager in 2015.
 As a result, Yager Development's division, Yager Productions GmbH, filed for insolvency in July 2015.
BattleGoat Studios is a Canadian software developer founded in 2000.
 They were formed to develop the PC Game title Supreme Ruler 2010, which is a new updated version of a game concept originally developed by George Geczy in 1982, a text-based strategy video game called "Supreme Ruler" released for the Radio Shack TRS-80 computer.
Derek K. Smart is an American video game designer.
 He is the president and lead developer of 3000AD, Inc., an indie game development company based in Aventura, FL.
 In addition he is the president of and investor in the video game development company Quest Online.
 Smart is an independent video game designer and software developer, and the creator of several video game series.

Question: In which city is this German video game and software developer founded in another city in 1999 based, which absorbed workers from the disbanding of Carbonated Games?
Answer: Frankfurt, Germany