Portal
Portal Gun Tips for Beginners: Core Mechanics to Know First
New to Portal? These core portal gun mechanics explain what you can and cannot place, and how to keep your momentum without spoiling any chambers.
Portal
Portal Walkthrough Orange Box: Chamber-by-Chamber Hints
Portal is the puzzle game inside The Orange Box, and its test chambers are built to be played in order. This walkthrough gives a hint for each stage so you can solve the puzzles yourself.
Is Portal Part of Half-Life 2: Episode Two?
Portal is not part of Half-Life 2: Episode Two. The two are separate games set in the same universe, and a few clues link them.
Portal and Half-Life 2 Order: Which Should You Play First?
Many players start with Portal and then move to Half-Life 2, but the best order depends on whether you care more about story or puzzles. Here is how to choose.
Portal Walkthrough HL2 Ep2: Which Guide You Need
Portal and Half-Life 2: Episode Two are different games, so the walkthrough you need depends on the one you are playing. Here is how to tell which is which and where to look.