Test with your companion until death do you part.

Tired of waiting around to see if Gordon Freeman and Chell ever cross paths? Here's a fantastic possibility.

We know they're in the same universe, (though timelines are a bit trickier) so make it happen, Valve. Half-Life 3 co-op mode?

These Portal 2 personality cores aren't going to space, they're just going to your stomach.

Bathe in the everlasting love of the mighty cube.

Knowing that we always need more Portal, Valve is now planning on releasing all the music from both games in a fancy four-disc collecter's edition.

The Songs To Test By: Collector's Edition comes out October 30.

Sometimes you luck out and get an awesome teacher with a desk like this.

Remember this week's real-life Portal Turret? Well, Valve posted another video revealing the origin of the device -- legendary New Zealand effects company WETA Workshop. And you've got to see their amazing Aperture Science packing crate.