Franchise file / Valve

Portal

Test subjects always welcome

Valve's first-person puzzle line began in 2007 inside The Orange Box. Two linked portals, one sardonic AI and the test chambers of Aperture Science do the rest.

Explore the franchise

2007
First game: 1
Series: Valve
Creator

In the framePortal 2

One world. Many eras.

Choose your chapter

The test chambers. Portal arrived in The Orange Box and returned on Xbox Live Arcade as Still Alive with extra maps. Portal 2 added co-op, new test elements and a far bigger story.

Start with Portal 2

Your next late night

The essentials

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Portal

Valve2007

Portal 2

Valve2011

Chapters

Series (1)

PortalPortal is Valve's first-person puzzle series, built around a gun that opens linked doorways in walls. It began in 2007 and the sequel in 2011 added co-op and a larger story.

A legacy worth revisiting

Physics, punchlines and cake.

Portal grew from Narbacular Drop, a DigiPen student project whose team Valve hired. The idea is simple, but the puzzles bend momentum and space in ways few games have matched, and GLaDOS turns every test into a dark comedy.