Quake II

Activision is an American video game publisher, majority owned by French conglomerate Vivendi SA. Its current CEO is Eric Hirshberg. It was founded on October 1, 1979 and was the world's first independent developer and distributor of video games for gaming consoles. Its first products were... cartridges for the Atari 2600 video console system published from July 1980 for the US market and from August 1981 for the international market . Activision is now one of the largest third party video game publishers in the world and was also the top publisher for 2007 in the United States. On January 18, 2008, Activision announced they were the top US publisher in 2007, according to the NPD Group. On December 2, 2007, it was announced that Activision would be acquired by Vivendi, with Vivendi contributing its gaming division plus cash, in exchange for a majority stake in the new group. The merger between Activision and Vivendi Games took place on July 9, 2008, with the newly formed company known as Activision Blizzard.
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Valve Corporation is an American video game development and digital distribution company based in Bellevue, Washington, United States. Founded in 1996 by former Microsoft employees Gabe Newell and Mike Harrington, Valve became famous from its critically acclaimed Half-Life series, . It is also... well known for its social-distribution network Steam; and for developing the Source engine, which has been used in every Valve game since its introduction in 2004. Valve was founded by long-time Microsoft employees Gabe Newell and Mike Harrington on August 24, 1996 as an L.L.C. based in Kirkland, Washington. After incorporation in April 2003, it moved from its original location to Bellevue, Washington, the same city in which their original publisher, Sierra On-Line, Inc., was based. After the success of Half-Life, the team worked on mods, spin-offs, and sequels, including Half-Life 2. All current Valve games are built on its Source engine, which owes much of its success to mods and sequels.
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Virgin Interactive was a British video game publisher. It was formed as Virgin Games Ltd. in 1981. The company became much larger after purchasing the budget label, Mastertronic in 1987. It was part of the Virgin Group. In 1994 it was renamed Virgin Interactive. It published games for PC and... systems, including the Amiga, ZX Spectrum, Amstrad CPC, C64, Sega Master System, Sega Mega Drive, Sega Game Gear, Super Nintendo Entertainment System, Sega Saturn, Sony Playstation, Nintendo 64 and Dreamcast. It helped the career of many developers, including Westwood Studios and Synergistic. Also, many workers for Shiny Entertainment, including David Perry, worked for Virgin before splitting off to create Earthworm Jim. Also among Virgin Interactive alumni are famed video game composer Tommy Tallarico, artist Doug TenNapel, designer David Bishop, animator Bill Kroyer, animator/artists Andy Luckey and Mike Dietz and programmer Andy Astor. In 1993 Virgin Interactive created the "Digicel" process, originally for an unpublished game called "Dynoblaze". Key to developing the process were Dr.
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