Real-life Portal Turret Tracks Movement and Shoots. Guard Dogs Should Update Their Resumes.
May 10th, 2012
Opera upgrade optional.
Aperture Science
Aperture Investment Opportunity #4
April 12th, 2011
Valve releases the fourth and final humorous ad for Portal 2.
Valve Releases Aperture Investment Opportunity #3
April 5th, 2011
Aperture answers all of your burning questions about their talking turret technology.