Here is the full list of all 30 The Dark Pictures Anthology: The Devil in Me achievements.
Found all of the Secrets
Found all of Mark's photo opportunities
Obtained all of the inventory items
Completed the Solo Story
Found all of the White Framed Pictures
Found all of the Black Framed Pictures
Found all of Du'Met's business cards
Mark agreed to Du'Met's proposal
Kate fell for Du'Met's impersonation
Found all of the Silver Framed Secrets
Yes, you can pet the dog
Collected 200 obols
Jamie reset the fuse box
Fixed all of the fuse boxes
Took a photo of each crew member
Charlie's hand was crushed
The crew didn't trust Charlie and he paid the price
Mark got the lighthouse working
No-one survived
Everyone survived
Charlie survived the furnace
Kate and Jamie both escaped the glass trap
Jamie chose to save Erin in the suffocation chamber
Kate and Mark rekindled their relationship
Jeff and Marie watched each other die
The dog made it off the island alive
Jamie chose to sacrifice herself in the glass trap
Charlie maintained control during dinner
Jamie and Erin kissed
Completed the prologue