Finished Portal 2 but haven't had your fill of Aperture Science testing chambers? Aside from handing out a slew of free content in the coming months, Valve is releasing the Portal 2 Authoring Tools -- essentially giving PC users access to some of the nuts and bolts behind the developer's critical...
Posted on Mar 15th 2014 12:30PM
Posted on Mar 14th 2014 4:30PM
Posted on Mar 14th 2014 3:30PM