Dive into the experience of piloting a robotic scout through what appears to be an ancient cave system leading down to the centre of the Earth. With the help of advanced sensors, guide your robot explorer along dark tunnels and caverns, avoiding obstacles, collecting relics of aeons past and, hopefully, discover what happened to its predecessor. Mickey Li, Julian Hird, G. Miles, Valentina Lo Gatto, Alex Smith and WeiJie Wong (most from the FARSCOPE CDT programme of the University of Bristol and the University of the West of England) have created this educational game as part of the UKRAS festival of Robotics 2021. The game has been designed to teach you about how sensors work, how they are used in reality and perhaps give a glimpse into the mind of the robot. With luck, this game can show how exciting it can be to work in robotics.