Here is the full list of all 30 The Dark Pictures Anthology: The Devil in Me achievements worth 1,000 gamerscore.
The crew didn't trust Charlie and he paid the price
Found all of the Secrets
Found all of Du'Met's business cards
Found all of the Black Framed Pictures
Found all of the Silver Framed Secrets
Collected 200 obols
No-one survived
Jamie chose to sacrifice herself in the glass trap
Everyone survived
Completed the Solo Story
Mark got the lighthouse working
Found all of the White Framed Pictures
Kate and Jamie both escaped the glass trap
Charlie survived the furnace
Jamie chose to save Erin in the suffocation chamber
Charlie's hand was crushed
Jamie reset the fuse box
Fixed all of the fuse boxes
Charlie maintained control during dinner
Jeff and Marie watched each other die
Kate and Mark rekindled their relationship
The dog made it off the island alive
Jamie and Erin kissed
Completed the prologue
Kate must help Mark at the lighthouse
Accept Du'Met's proposal
Pet the dog
Obtain all of the inventory items
Find all of Mark's photo opportunities
Take a photo of each crew member