Originally posted by Nameless:

Trolls can spawn inside their cave, in front of their cave, more rarely they spawn inside and outside.

And Trolls can spawn randomly in Dark forest, 100% no Cave needed, i had a releiable Troll spawner on a island with no cave in several hundrets of meters arround

Yes but near as I can tell they used to spawn in the same spot. The game kinda created a troll spawn and when you killed one eventually it would respawn but if you were just out in the world and mining or chopping wood a Troll wouldn't spawn in place of the Grey dwarves that harass you. Now they can. (or so it seems) In my case I go by an area... grey dwarves harass me... no troll what so ever anywhere. I go back cut down a tree and from the same place the grey dwarves normally come.. troll. In the other location I mine all the Tin, get the blueberries, clear the crypt, scout the whole area. Few days late go back hit a tree and a troll drops from the same place Grey Dwarves harassed earlier in front of the blue berries.

Previously they had set spawn points (near as I can tell having a base not far from one) Now it is any where any time in the black forest.

So ya RNG can really kick your but now.