Exploration is one of the key driving forces behind all of civilisation. If our ancestors had never wondered about what was over the horizon, we wouldn’t live in the world as we know it today. History has been full of famous explorers, from Marco Polo to Roald Amundsen and, even now, humans are exploring with the aid of machines. As I’m writing this Voyager 1 is coming close to leaving the Solar System, venturing into parts unknown. The majority of us won’t explore Space, but we can still explore digital worlds with the help of consoles, PCs, and Terraria.