A fictional universe where the main story of Erfworld webcomic takes place. It seems that Erfworld exists in the state of permanent war between beings and factions that populate it.
Common environment of Erfworld resembles that of Europe or North America on Earth. Forests are quite common (at least, around Gobwin Knob), there are mountains and lakes.
Erfworld is illuminated by the sun during the day and the moon and stars during the night.