Borrowing Positions: Role-Playing Design & Architecture is a speculative book which reflects on the design- and architecture-centred LARPs (Live Action Role-Plays) organized by the Trojan Horse collective. The book is an exploration of Live Action Role-Play as a design and architecture research tool. By inviting the reader to try on different characters, switch roles and reconsider their everyday practices, the book explores issues such as identity, performativity, gender, colonialism, care responsibilities and fear in the context of architecture, design and urban planning. The book consists of three parts: an overview of previous LARPs and their theoretical background; reflections (essays, visual essays and interviews) on LARP-related issues; and a practical (DIY) section – a step-by-step guide on how to organize your own design LARP. Contributors to the book vary from architecture and design practitioners to performance artists working with role-play and fiction. The book will be of interest to anyone interested in inderdisciplinary practices in design and architecture.