Portal 2: Why is this puzzle masterpiece still worth praising after 13 years of play?

The article provides a detailed introduction to *Portal 2*, covering the initial experience to in-depth analysis, highlighting its unique puzzle design, storyline, and atmosphere. The piece notes that the level design of *Portal 2* is ingenious, with puzzle difficulty gradually increasing in a creative manner; the plot is filled with irony and dark humor, making for an engaging narrative; technically, the game boasts visually appealing graphics and excellent optimization. Despite some minor遗憾, such as the single-player storyline being relatively short, the author concludes that *Portal 2* is a classic worth recommending to both new and veteran players.