Portal

About Portal

Waking up in a seemingly empty laboratory, the player is made to complete various physics-based puzzle challenges through numerous test chambers in order to test out the new Aperture Science Handheld Portal Device, without an explanation as to how, why or by whom.

Portal is a platform and puzzle game from Valve, published by Electronic Arts and Valve.

It arrived in October 2007 and is playable on PlayStation 3, Linux, and Android. Its Metacritic score is 80.