If you have downloaded a file titled Portal.2.Complete.zip from an unofficial source, please exercise caution. These types of archives are frequently used to distribute malware. For the safest and most stable experience, it is recommended to use the Steam Store version. Portal 2 on Steam
Portal 2 is a first-person puzzle-platformer developed by Valve and released in 2011. It expanded significantly on the "test chamber" formula of its predecessor, introducing new mechanics like tractor beams, lasers, and light bridges. The Core Experience
You play as Chell, navigating the decaying Aperture Science facility. The game is set anywhere from 50 to 50,000 years after the original. According to HowLongToBeat , the main objectives take about 8.5 hours to complete.