The guide "Ethics and Morality in Video Games: Case Study Mass Effect 2" offers an in-depth analysis of the moral and ethical questions that arise in modern video games. In an era where video games increasingly depict realistic and complex worlds, the identification with game characters and the associated decisions become a central theme. The author, Sabrina Auer, examines how players' choices in Mass Effect 2 not only influence the game's narrative but can also challenge the personal values and identity of the players. This research provides a valuable overview of the role of ethics and morality in gaming culture and encourages reflection on the impact of video games on individual and societal consciousness.