Start thinking with portals.
In conclusion we can marry the word masterpiece, and Portal 2. This is an example of when a game should not miss in any collection of video games, even though it may seem like a niche title, and not for everyone, you may contradict the pleasure of trying to play this video game masterpiece. With a duration of about 9-10 hours for the campaign to play alone or with others supported by an intriguing story and puzzles to encourage each gray matter, the title will inevitably catch up to its conclusion. Thanks Valve!