Portal review. http://www.ClassicGameRoom.com Shop CGR for shirts! http://www.CGRstore.com Classic Game Room reviews PORTAL from Valve released in 2007 for Xbox 360, PlayStation 3 PS3 and PC. CGR plays Portal on the PC here with mouse and keyboard as I complete test chambers on my quest for delicious cake!! Portal may be relatively short but comes with some bonus levels and additional challenges, besides it's long enough to get the awesome storyline across. As you start off in the test chamber you quickly realize that escaping the talking computer is your main objective, but what about that yummy cake you were promised? CGR Portal video review features Portal gameplay from PC (Samsung Series 7 Chronos laptop).