This Research Handbook analyzes the role of law in a universe fractured by new and disruptive technologies such as metaverse platforms. Contributing authors explore how the law will and must adapt as new dimensions are introduced to issues such as intellectual property rights, e-commerce, NFTs and cryptocurrencies, data privacy, contract law, but also human rights, consumer law and criminal law. The issue of abuse and manipulation of users is the focus of several contributions. In this innovative Research Handbook, global experts discuss the philosophical and legal questions raised by the use of immersive platforms for leisure and gaming, as well as professional, commercial and medical activities. The authors employ legal frameworks to understand the metaverse from the perspectives of personality, property, obligation, harm, and liability, examining how current law succeeds and falters in regulating the challenges presented by virtual worlds. They consider the dangers to ordinary citizens and vulnerable consumers and provide insights on how legislation should be developed prior to the creation of a fully functioning metaverse in order to prevent the erosion of fundamental human rights. This book is a crucial resource for scholars and students of Web 3.0 and AI law. Its comprehensive coverage of the intersection between law and the metaverse is indispensable for professionals in the field.