Wall World: Deep Threat

Welcome to Deep Threat, a Wall World story expansion! With it, you'll get to explore a remote section of the Wall which holds traces of a distant past. But you will have to fight for answers, and not only with the new types of Zyrex: other inhabitants of the Wall are also not too keen on parting with their secrets.
Dig and enhance
Nine new mine biomes with relics and blueprints that you haven't seen before are buried within.
Fight
New types of enemies and bosses, even angrier than before. A third party is now guarding the secrets of the Wall.
Explore
Study the finds to piece together the events of the distant past and uncover the secret that is buried deep in the bowels of the Wall.
more information