Portal 2/ko: Difference between revisions

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'''''Portal 2''''' is the sequel to the award winning and hugely successful ''[[Portal]]'' developed by [[Valve|Valve Corporation]]. It features a single-player story set after the events of ''Portal'''s story; and a brand-new [[Co-op]] game mode, featuring additional [[test chambers]] designed specifically for Co-operative play. ''Portal 2'' was released April 19, 2011 on the Steam platform. Retail release in North America started on April 19, 2011; and later, Europe and Australia on April 21, 2011.

{{main|Story}}

{{Spoiler|''Portal 2'' takes place an indeterminate amount of time after the events of ''Portal'', which saw [[Chell]] destroying the sentient computer [[GLaDOS]], and landing outside the facility, only to be dragged back inside of [[Aperture Science]] where she was ultimately placed in a [[Relaxation Chamber]] by [[Doug Rattmann]] for the indefinite future.}}

{{Spoiler|The game concludes, yet again, with a song sung by GLaDOS surmising the events of the game. The song, [[Want You Gone]], written by Jonathan Coulton indicates that, despite claims that Caroline has been deleted, is still present inside GLaDOS, and that deleting Chell from her memory bank will make GLaDOS feel better. The song concludes with GLaDOS simply telling Chell she wants her gone.}}

Development on ''Portal 2'' begins shortly after ''[[Portal]]'' was released. It originally was planned to not include any portals in the game, utilizing a new mechanic called '''"F-STOP"'''. ''Portal 2'' was also planned to be set in [[Aperture Science]]'s  earlier days, specifically during the 1950's era. When asked one of the members that worked on ''Portal 2'' that the game wasn't going to include portals, and how would the game be a sequel to ''Portal'', and more specifically, use the ''Portal'' title. He replied with, "We'll deal with it later.", hinting it was to focus on the game's mechanics first.

There was also going to be a fourth [[Gel]] planned for the game. Also inspired by "Tag: The Power of Paint", the fourth Gel was named [[Adhesion Gel]]. Bearing a purple texture, it originally allowed Chell to walk up walls. It was canceled due to playtesters became too disoriented and often had motion sickness while trying to pass a [[Test Chamber]] with Adhesion Gel. The coding (although it does not have any texture and bestows no effects on the surface it was painted on), is left in the game files.

=== ARG ===

{{See also|Portal 2 ARG}}

Large numbers of people participated in solving the puzzles within the ARG. Reaction from players and journalists was mixed; some saw the ARG as a show of strong support and commitment by Valve for independent game development, while others thought the ultimate conclusion was of limited benefit to justify buying the games to begin with.

On the release date of the Potato Sack bundle, players found the games within it had recently received updates. Most provided an immediate cosmetic change by replacing or adding assets that referred to potatoes. When players started looking deeper into these new assets, they discovered a series of glyphs that referred to other games associated with specific letters, as well as nonsense sentences that lead to specific cyphers. Other hints were less direct, using online services such as Twitter and YouTube to embed clues. In the case of Toki Tori, sections of new levels included braille code that referred to latitude and longitude coordinates of Two Tribes' headquarters. One player, "Jake_R", traveled to Two Tribes, where he discovered the glyphs and cyphers posted outside their headquarters. Several of Two Tribes' developers, upon learning of his presence, began filming him from a barbershop across the street. They would later use this footage of him climbing a pole to find these clues as part of another clue during the second phase.

On April 7, each of the games in the Potato Sack received a second major update. Players found that by completing certain tasks in the game, they would be presented with login screens for the fictional Aperture Science corporation within the Steam interface. Other tasks and clues led to passwords that could be used to log into these Aperture Science screens. These provided players with compressed archives of pictures that consisted of Portal 2 artwork, including photographs from around Seattle (where Valve is based) embedded in their alpha channels. (Section not finished)

== Post-release ==

{{See also|Patches}}

During a keynote presentation at the {{w|Games for Change|Games For Change}} festival in 2011, Valve director Gabe Newell mentioned that the company was beginning to work with schools to build curricula around ''Portal 2'', looking into "how to teach attraction, repulsion... [they] need to be clear on what their metrics are... what the outcome is, what they're optimizing for".<ref>[http://kotaku.com/5814405/ Kotaku: "Liveblogging Whatever Smart Stuff Gabe Newell Has to Say Today"].</ref>

* {{Spoiler|Shooting a portal to the moon as the ending was originally an easter egg "3 minutes into the game", which caused the player to be sucked out of the test chamber and die - and was an alternate game ending.}}<ref>http://www.giantbomb.com/podcast/?podcast_id=224</ref>