This may be a clue for the continuing ARG which was hinted at earlier this week. Going to the Steam website to view the release though, I noticed that certain characters were underlined. The sequel is currently slated to come out “this holiday season” but there were no details provided on the setting, plot or anything, really. Portal 2 will be released on PC and Xbox 360.Ī brief press release from Valve stated the accolades of the company and the many awards (70) that the first Portal received. You will once again work with GlaDOS, but Portal 2 will have a two player co-op campaign with its own story that will force the players to solve puzzles together.

The sequel introduces two new characters and a previously unseen area of Aperture Science Labs. UPDATE: New details on the gameplay of Portal 2 have emerged.

After speculation this week, Valve has officially come out to say that Portal 2 is indeed dropping this holiday season.