This was reported on the steam forum:
Bug reported here: http://steamcommunity.com/app/276870/dis...153759716/
Added to the list of Bugs/Issues & Crashes!
Quote:Well, I've managed to seal off every portal in the underground, and destroy every building on the surface... except for a single graveyard that was made inaccessible due to a combination of faulty map generation, and the inability to build simple structures, such as ladders or blocks, or dig out blocks on the surface world. Is there supposed to be a win condition, such as destroying every single structure in the overworld? If so, then I'm afraid that I cannot accomplish this.
Start a new game with map seed set to "0".
Explore the west-northwestern part of the overworld.
Bug reported here: http://steamcommunity.com/app/276870/dis...153759716/
Added to the list of Bugs/Issues & Crashes!