Portal 2 review — Dark, twisted and astounding at the same time
Must-play for anyone that enjoys videogames.
Want Portal 2 to release early? Play some indie games
You can't really fault that deal...
Portal Gets 1.5 Million Downloads Since Going Free On Steam
All that in just one week...
GDC 2010: Newell: “Portal 2 is Valve’s Best Game Ever”
The Valve boss, making bold claims.
Valve Makes Portal 2 Official
A sequel to the oddly compelling puzzle game, on the way.