Query: There is a video game called Team Fortress 2.

Relevant passages:
Team Fortress Classic <=SEP=> Team Fortress Classic is a team-based online multiplayer first-person shooter video game developed and released by Valve in 1999 . Based on the 1996 Quake modification Team Fortress , the title was ported to Valve 's GoldSrc engine as a way of promoting Half-Life 's software development kit .   Matches in Team Fortress Classic pit two teams against each other , with each team member having access to nine distinct classes . Competition takes place in a variety of scenarios , usually capture the flag , VIP protection , or territorial control . Since its release , the game has undergone significant upgrades to player models and game modes .

Team Fortress 2 <=SEP=> Team Fortress 2 ( TF2 ) is a team-based multiplayer first-person shooter video game developed and published by Valve Corporation . It is the sequel to Team Fortress , the 1996 mod for Quake and its 1999 remake , Team Fortress Classic . It was released as part of the video game bundle The Orange Box in October 2007 for Microsoft Windows and the Xbox 360 . A PlayStation 3 version followed in December 2007 . The game was released for Windows as a standalone entry in April 2008 , and was updated to support OS X in June 2010 and Linux in February 2013 . It is distributed online through Valve 's digital retailer Steam , with retail distribution being handled by Electronic Arts .   In Team Fortress 2 , players join one of two teams comprising nine character classes , battling in a variety of game modes including capture the flag and king of the hill . The development is led by John Cook and Robin Walker , creators of the original Team Fortress . Announced in 1998 , the game once had more realistic , militaristic visuals and gameplay , but this changed over the protracted nine-year development . After Valve released no information for six years , Team Fortress 2 regularly featured in Wired News annual vaporware list among other ignominies . The finished Team Fortress 2 has cartoon-like visuals influenced by the art of J. C. Leyendecker , Dean Cornwell , and Norman Rockwell , and uses Valve 's Source game engine .   Team Fortress 2 received critical acclaim for its art direction , gameplay , humor , and use of character in a multiplayer-only game . Valve continues to release new content , including maps , items and game modes , as well as community-made updates and contributed content . In June 2011 , it became free-to-play , supported by microtransactions for in-game cosmetics . A ` drop system ' was also added and refined , allowing free-to-play users to periodically receive game equipment and items by use of a random number generator . Though the game had a unofficial competitive scene for many years , support for official competitive play through ranked matchmaking and an overhauled casual experience was added in July 2016 .

Multiplayer video game <=SEP=> A multiplayer video game is a  video game in which more than one person can play in the same game environment at the same time . Video games are often single-player activities , putting the player against preprogrammed challenges or AI-controlled opponents ( which lack the flexibility of human thought ) . Multiplayer games allow players interaction with other individuals in partnership , competition or rivalry , providing them with social communication absent from single-player games . In multiplayer games , players may compete against two ( or more ) human contestants , work cooperatively with a human partner to achieve a common goal , supervise other players ' activity , co-op , and objective-based modes assaulting ( or defending ) a control point . Multiplayer games typically require players to share the resources of a single game system or use networking technology to play together over a greater distance .

Electronic Arts <=SEP=> Electronic Arts Inc. ( EA ) is an American video game company headquartered in Redwood City , California . Founded and incorporated on May 28 , 1982 by Trip Hawkins , the company was a pioneer of the early home computer games industry and was notable for promoting the designers and programmers responsible for its games . As of 2014 , Electronic Arts was the world 's fourth-largest gaming company by revenue after Tencent , Sony and Microsoft  The company sparked controversies over its advertising efforts , and acquisition of other studios .   Currently , EA develops and publishes games under several labels including EA Sports titles FIFA , Madden NFL , NHL , NCAA Football , NBA Live , and SSX . Other EA labels produce established franchises such as Battlefield , Need for Speed , The Sims , Medal of Honor , Command & Conquer , as well as newer franchises such as Crysis , Dead Space , Mass Effect , Dragon Age , Army of Two , Titanfall and Star Wars : Knights of the Old Republic , produced in partnership with LucasArts . EA also owns and operates major gaming studios , EA Tiburon in Orlando , EA Canada in Burnaby , BioWare in Edmonton as well as Montreal , and DICE in Sweden .

The Orange Box <=SEP=> The Orange Box is a video game compilation for Microsoft Windows , Xbox 360 , PlayStation 3 , OS X and Linux . The Windows and Xbox 360 versions were produced and published by Valve Corporation and released on October 10 , 2007 , as a boxed retail copy . A Windows-only download through Valve 's Steam service was released the previous day .   The PlayStation 3 version was published by Electronic Arts and released in North America and Europe on December 11 , 2007 . Valve also released a soundtrack containing music from the games within the compilation . The compilation contains five games , all powered by Valve 's Source engine . Two of the games included , Half-Life 2 and its first stand-alone expansion , Episode One , had previously been released as separate products . Three new games were also included in the compilation : the second stand-alone expansion , Half-Life 2 : Episode Two , the puzzle game Portal , and Team Fortress 2 , the multiplayer game sequel to Team Fortress Classic . A separate product entitled The Black Box was planned , which would have included only the new games , but was cancelled .   The Orange Box received critical acclaim , with Portal being recognized as a surprise favorite of the package . The PlayStation 3 version of The Orange Box was noted for several technical shortcomings that were not present in the other versions , only a few of which were fixed through a single patch .

Robin Walker (game designer) <=SEP=> Robin Walker is an Australian video game designer best known for co-developing Team Fortress and Team Fortress 2 .

Source (game engine) <=SEP=> Source is a 3D video game engine developed by Valve Corporation as the successor of GoldSrc . It debuted with Counter-Strike : Source in June 2004 , followed shortly by Half-Life 2 , and has been in active development since . Source does not have a concise version numbering scheme ; instead , it is designed in constant incremental updates . The successor , Source 2 , was officially announced in March 2015 , with the first game to use it being Dota 2 , which was ported over from Source later that year .