So is this game close to being finished?
The main story with the 3 god as been barely started, even the map isn't finished, some area in the infected zone are not available, some fortress have barely 1 quest, or unfinished quest line... even in the non-infected zone some area are still unavailable such as in the perverted monastery, the bandit village where you recruit David Borne don't have any quest who lead to the village, some boss map such as the berserker squeletton are impossible to find on your own without help... i missed a lot of content on myfirst playthrough because of the lack of quest/indication.
Expect at least 1 year of developpment before it's finished.