This report documents the design and implementation of Clusus, a cyber range to provide students with a safe isolated environment to learn about cyber security and computer networks. This Bachelor project was proposed by the TU Delft cyber security group. During a two week research phase currently existing solutions were evaluated and requirements for the system were determined. Based on these requirements and research into the capabilities of cloud providers a design was proposed. In the second phase of the project was the implementation of the design. The chosen design consists of three major components, a central server that handles the communication between the learning management system and an individual exercise, a containerized exercise, and finally a program that builds these containers. The containerized exercise consists of all virtual machines required for an exercise and a monitoring program that reports progress to the central server.