You're walking down a long white corridor and stop at the foot of two brightly colored staircases-one leading up and one leading down. You decide to see what's upstairs, and as you ascend the steps, enter into a long white corridor. You walk down the space until you arrive, to your dismay, right where you started. Naturally this time you choose to go downstairs: another white corridor and you're back at the staircase. You stop to take stock of your situation. Uh, what? If your purpose is to move forward, what do you do? How do your stretch your perception to progress? This is basically Antichamber in a very basic nutshell. Play it.