A general trend of museums and cultural heritage institutions besides digitizing their collections is to involve the public more and at various levels. Technology plays an increasingly important role in this involvement. Developments we have observed in museum experience design, include trends towards 1) dialogical engagement of the public; 2) addressing crowds as audiences; 3) the use of Internet of Things (IoT) and Do-It-Yourself (DIY) technology in museums; and 4) designing for museum systems and institutional ecologies instead of for individual museums only. In this one-day workshop we especially focus on exploring the implications of museums reaching out to crowds beyond their local communities, and of museums increasingly becoming part of connected museum systems and large institutional ecosystems. By means of a tangible game we will brainstorm about future opportunities and challenges, cluster and evaluate them, and suggest future work.