What genre is Portal classified as on Wikipedia?

Wikipedia classifies Portal as a puzzle-platform game.

That label combines two central parts of its design. The puzzle side comes from the test chambers, where players must reason about portals, buttons, cubes, momentum, timing, and spatial relationships. The platform element comes from navigating three-dimensional spaces, crossing gaps, reaching elevated surfaces, and using movement techniques to get from one location to another.

Portal is an unusual example because it presents platforming from a first-person viewpoint rather than the side-on perspective associated with many classic platform games. Players do not simply jump from platform to platform: they create connections between surfaces and use those connections to redirect themselves and objects. Some solutions depend on preserving speed while passing through a portal.

The game was developed and published by Valve and released in 2007 as part of The Orange Box. Its genre is sometimes described informally as a first-person puzzle game, but “puzzle-platform” is the canonical genre label shown in Wikipedia’s infobox. Portal 2 carries the same broad classification while adding cooperative play, more mechanics, and a longer story.