You are about to enter another dimension, a dimension not only of traps and pitfalls but of peculiar spatial rifts. It's called the Aperture Science Enrichment Center, and it's the setting of Portal, available for PC, PS3, and Xbox 360 in October. You'll be armed with a device that blasts open warp portals, helping you survive by defying the laws of physics. This mind-bending puzzler started as a project by seven students from DigiPen Institute of Technology outside Seattle. "We wanted to get people's attention - and get jobs," level designer Kim Swift says. Mission accomplished.