BTW, Flask Avengers are back:
Sneak attack works with alchemist flasks like acid or alchemist's fire.
So, have trouble hitting normal AC, go for touch by throwing a flask or two, especially with sneak attack.
Haven't tested the Alchemist class's bombs, but normal ones work.
Love this because 3.5 D&D allowed it but I never got to try it out back then.
Sneak attack in generall is easier in Pathfinder: Kingmaker, thanks to the simplyfied rules of flanking, and applying that to ranged attacks.
In my game, thanks to a sneak attack & a critical, Octavia (rogue 2/wizard 3/arcane trickster 4) did 60 damage to an owlbear using the first level spell Snowball. I am considering giving every PC a level in rogue to take advantage of this.