For 10 points, name this video game produced by Valve, whose line "the cake is a lie" became a popular internet meme.
At the very end of this game, we see a candle get extinguished and the central event began on "Take your Daughter to Work Day". The main character is promised grief counseling after the conclusion of the test, which may be needed after she finds out that the main antagonist is "Still Alive" and euthanizes her (*) Companion Cube. This game sees the silent protagonist Chell face off with Aperture Science's GLaDOS. For 10 points, name this video game produced by Valve, whose line "the cake is a lie" became a popular internet meme.
At the very end of this game, we see a candle get extinguished and the central event began on "Take your Daughter to Work Day".
{Portal}