Here is the full list of all 17 Wild Unknown achievements.
You just couldn't even
You found a bunker from before
You talked to a real, living human
You chose not to know
You made a big boom
You chose to escape
You found everything Amelia left behind
You found everything that somebody left behind
You got inside their office
It got dark fast, how long were you out?
Welcome to the DCR
Flushhhhhhhhhh
You thought it was all too much
You found what they could not
You found a deep rabbit hole
Stranger Danger?
You chose to do your time