Portal 2 - The Final Hours

"Portal 2 - The Final Hours" is a digital book that provides an in-depth look at the creation of the game Portal 2. It includes a 15,000 word multimedia experience with exclusive photos, videos, and interviews, offering a behind-the-scenes look at Valve's creative process. The book reveals the original concept for Portal 2 as a prequel without portals or GLaDOS, and the development of Directed Design Experiments after Half-Life 2: Episode Two. A free bonus chapter covers the making of the 'Peer Review' DLC and future plans for Portal 2.