Portal
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About Portal
Portal is a single-player game set in the mysterious Aperture Science Laboratories. You solve physical puzzles by opening portals to move objects and yourself through space, using them to find ways through each environment.
Frequently asked questions
The best price for Portal is $9.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Portal are: Windows XP, 512 MB RAM. It runs on Windows only. The recommended specs are in the System requirements section.
No. Portal is a single-player game.
Yes. Valve rates Portal as Verified on the Steam Deck: it runs well out of the box.
Yes. Portal is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
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