View source for Hub

{{Chamber infobox
  | title      = Course 0 - CinTech
  | map        = mp_coop_lobby_2.bsp
  | valve-title        = Hub
  | screenshot = Portal 2 Hub.png
  | number = 00
  | previous   = Portal 2 Co-op Calibration Course
  | next       = Portal 2 Co-op Course 1 Chamber 1
}}

'''The Hub''' is a section of [[Aperture Science]] that is featured exclusively during the [[Cooperative Testing Initiative]]. Through the '''Computer Intelligence Training and Enrichment Center Human Test Subject Research Center''', or '''CinTech''' (pronounced Sin-Tech), [[Atlas]] and [[P-Body]] can access the various test chambers that are featured throughout the coop campaign. 

It features a large screen that displays the total steps players have taken since starting co-op, as well as total portals fired and other statistics. Additionally, it has [[Aerial Faith Plate]]s, [[Hard Light Bridge]]s, and [[Panels]] that allow for easy traversal of the chamber.

{{Spoiler|After you complete the final course, ''Mobility Gels'', the [[Announcer]] then speaks to the players in the Hub. This will happen even if one of the players has not completed co-op mode. As such, one player will miss out on GLaDOS' story-related lines and the unique "new area unlocked" animations that this map plays when neither player has completed a part. This also occurs if the game is a local split-screen session where all chambers are automatically unlocked.<ref>[http://steamcommunity.com/app/620/discussions/0/864951657941091415/#c864951657965247978 "Portal 2 split screen coop NOT saving progress"]</ref>}}

== Trivia ==
* There are 2 different map files for the hub. {{code|mp_coop_lobby_2}} is the original version of the hub present in the game at release, while {{code|mp_coop_lobby_3}} added {{Spoiler|the Art Therapy DLC course.}}
** {{code|mp_coop_lobby_2}} is only used when playing with a partner who doesn't have the [[Peer Review]] DLC installed. Since the PC and Switch versions of Portal 2 bundle Peer Review with the base game rather than being a separate download, this is only possible in the Xbox 360 and PS3 versions of the game. On PC, the map can also be loaded through the developer console, and still functions as expected.
** There is no {{code|mp_coop_lobby}}; unused files indicate that this was an early version of the hub which was replaced later in the game's development.
* As the host (Atlas/player 1), to reset your progress so that your testing partner can experience the story in the Hub from the beginning, use the console to enter in {{code|mp_mark_all_maps_incomplete}}. You won't lose your achievements or your accumulated stats (portals placed, footsteps taken, etc.), but after resetting the level with {{spoiler|{{code|changelevel mp_coop_lobby_3}}}}, all of the test chambers will be closed off and you'll hear GLaDOS's lines again. If your friend was further along with ''some'' of the sections done, you can use {{code|mp_mark_course_complete}} and then 0, 1, 2, or 3, depending on what their last completed section was, to make your completion progress roughly equal. Finally, use {{code|changelevel}} again to load the map with the changes applied.
* There are small speakers with the label 409 in the chamber changer for every course (including art therapy), which can play 3 [[Turret voice lines]] at random. ("Noooooo!", "Hooray!" and "Goodbye!")

== See Also ==
* [[Cooperative Testing Initiative]]

== References ==
<references/>

== Gallery ==
{{Gallery
|width=192
|height=108
|lines=1
|File:Portal 2 Hub view.png|alt1=An overview of the Hub|An overview of the Hub.
|File:Portal 2 Hub Course View.png|alt2=Disassembly chamber|Disassembly chamber.
}}

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[[Category:Portal 2 Co-op chambers]]
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