This autobiography of John Romero describes his career path in the gaming industry from its very beginning to recent times. It features many well-known games, such as Commander Keen, Wolfenstein, Heretic and Doom. It connected for me a lot of dots that were not clear to me in the beginning, especially how the different games related to each other and his relations to other game studios. Especially interesting were the different game mechanics and their evolution over time. These games have been the parents of many other games and game ideas up until todays time. He also explains the impact of working in the gaming industry on his private life, which can be rather significant. The book is relevant for anyone working in the game industry and that want to understand also all the "other" things needed to make a game successful beside providing a brilliant game play (such as managing staff, publications, distribution and communities).