Here is the full list of all 28 Sherlock Holmes The Awakened achievements.
Feed yourself to a gator.
Collect all achievements.
Rouse evil from its slumber.
Find out how the intruder got into the warehouse.
Stop the ritual.
Learn about the lighthouse keeper.
Find all evidence at the cliffside crime scene.
Complete Chapter Seven.
Leave Barnes the book.
Complete Chapter Six.
Identify all the unknown substances.
Reach the island.
Complete Chapter Five.
Find the raccoon nest.
Unlock the safe.
Help quench the horse's thirst.
Complete Chapter Four.
Pretend to be Barnaby.
Find out more about the auction.
Complete Chapter Three.
Make it look back at you.
Learn more about Gygax.
Pick every lock.
Find the book about tulpas.
Complete Chapter Two.
Learn about the missing Nepali brother.
Complete Chapter One.
Help Barnes with his love life.