Here is the full list of all 15 I Am Dead achievements.
Meet Pete Noach
Meet Val Outram
Meet Ogden Beckett
Meet Greg Litherland
Meet Samphire
Meet Aggi
Find all the plastic clogs in the Lighthouse
Find all the wrens in the Sculpture Park
Find all the cats in the Quay
Find all the wrestlers in the Campsite
Find all the thermos flasks in the Boats
Find the butterflies in the Museum
Finish All Of Mr Whistable’s Riddles
Find Grenkin Grove
Obtain all other trophies