Portal 2 has received an update and is now compatible with AMD's Vulcan API
Why Portal is Better than Portal 2 - The Gemsbok
Mechanics, Depth, and Portal 2
Ten Years Later: Portal 2 Is A Beautifully Pure Puzzler | Goomba Stomp Magazine
Best games like Portal and Portal 2 for mind-bending puzzles | GamesRadar+
LambdaGeneration on Twitter: "Check out just-released Half-Life: Alyx mod ApertureVR which brings Portal 2 mechanics and assets to Source 2 https://t.co/GpJc2wIFFN https://t.co/UNlPPjjXgo" / Twitter
1920 by 1080 diagrams - Google Search | Gel, Portal, Portal 2