Portal 2 is a first-person puzzle game developed by Valve Corporation and released on April 19, 2011 on Steam, PS3 and Xbox 360. It was published by Valve Corporation in digital form and by Electronic Arts in physical form. 
Its plot directly follows the first game&#39;s, taking place in the Half-Life universe. You play as Chell, a test subject in a research facility formerly ran by the company Aperture Science, but taken over by an evil AI that turned upon its creators, GladOS. After defeating GladOS at the end of the first game but failing to escape the facility, Chell is woken up from a stasis chamber by an AI personality core, Wheatley, as the unkempt complex is falling apart. As the two attempt to navigate through the ruins and escape, they stumble upon GladOS, and accidentally re-activate her...
Portal 2&#39;s core mechanics are very similar to the first game&#39;s ; the player must make their way through several test chambers which involve puzzles. For this purpose, they possess a Portal Gun, a weapon capable of creating teleportation portals on white surfaces. This seemingly simple mechanic and its subtleties coupled with the many different puzzle elements that can appear in puzzles allows the game to be easy to start playing, yet still feature profound gameplay. The sequel adds several new puzzle elements, such as gel that can render surfaces bouncy or allow you to accelerate when running on them.
The game is often praised for its gameplay, its memorable dialogue and writing and its aesthetic. Both games in the series are responsible for inspiring most puzzle games succeeding them, particularly first-person puzzle games. The series, its characters and even its items such as the portal gun and the companion cube have become a cultural icon within gaming communities.
Portal 2 also features a co-op mode where two players take on the roles of robots being led through tests by GladOS, as well as an in-depth level editor.

《传送门2》是由Valve Corporation开发并于2011年4月19日在Steam、PS3和Xbox 360上发布的第一人称解谜游戏。它由Valve Corporation以数字形式和Electronic Arts以实体形式出版。
其情节直接延续第一款游戏，发生在《半条命》宇宙中。你扮演Chell，一个在研究设施中的实验对象，该设施曾由Aperture Science公司运营，但被一个背叛其创造者的邪恶AI GladOS接管。在第一款游戏结束时击败GladOS但未能逃脱设施后，Chell被一个AI人格核心Wheatley从昏迷舱中唤醒，此时设施正在崩溃。当他们试图穿越废墟逃脱时，他们遇到了GladOS，并意外地重新激活了她……
《传送门2》的核心机制与第一款游戏非常相似；玩家必须通过几个包含解谜的测试室。为此，他们拥有一把传送枪，一种能够在白色表面上创建传送门的武器。这种看似简单的机制及其微妙之处与可能出现在解谜中的许多不同解谜元素相结合，使游戏易于开始但仍然具有深刻的游戏体验。续集添加了几种新的解谜元素，例如使表面弹跳或在其上奔跑时加速的凝胶。
该游戏常因其游戏玩法、难忘的对话和写作以及其美学而受到赞誉。该系列的两款游戏都激发了此后大多数解谜游戏的灵感，特别是第一人称解谜游戏。该系列、其角色甚至其物品如传送枪和伙伴立方体已经成为游戏社区中的文化象征。
《传送门2》还包括一个合作模式，两名玩家扮演被GladOS引导通过测试的机器人，以及一个深入的关卡编辑器。

Portal 2 is a first-person puzzle game developed by Valve Corporation and released on April 19, 2011 on Steam, PS3 and Xbox 360. It was published by Valve Corporation in digital form and by Electronic Arts in physical form. 

Its plot directly follows the first game's, taking place in the Half-Life universe. You play as Chell, a test subject in a research facility formerly ran by the company Aperture Science, but taken over by an evil AI that turned upon its creators, GladOS. After defeating GladOS at the end of the first game but failing to escape the facility, Chell is woken up from a stasis chamber by an AI personality core, Wheatley, as the unkempt complex is falling apart. As the two attempt to navigate through the ruins and escape, they stumble upon GladOS, and accidentally re-activate her...

Portal 2's core mechanics are very similar to the first game's ; the player must make their way through several test chambers which involve puzzles. For this purpose, they possess a Portal Gun, a weapon capable of creating teleportation portals on white surfaces. This seemingly simple mechanic and its subtleties coupled with the many different puzzle elements that can appear in puzzles allows the game to be easy to start playing, yet still feature profound gameplay. The sequel adds several new puzzle elements, such as gel that can render surfaces bouncy or allow you to accelerate when running on them.

The game is often praised for its gameplay, its memorable dialogue and writing and its aesthetic. Both games in the series are responsible for inspiring most puzzle games succeeding them, particularly first-person puzzle games. The series, its characters and even its items such as the portal gun and the companion cube have become a cultural icon within gaming communities.

Portal 2 also features a co-op mode where two players take on the roles of robots being led through tests by GladOS, as well as an in-depth level editor.

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