Here is the full list of all 37 Last Days of Lazarus achievements.
Tried to pet the cat a second time
Find the Holy Reliquary
Find all collectibles
Find Zhivko's Gift
Find the Third Phylactery
Find the Monastic Invention
Find the Sacred Orb
Save a soldier from a horrible death
Finish Last Days of Lazarus
Complete Act VIII
Find all the documents
Interact with Martha in the cemetery
Complete Act VII
Listen to all radio segments
Find the Baroque Clock
Find the Birth Certificate
Find the Second Phylactery
Complete Act VI
Find the Life Giving Device
Find the Cursed Skull
Complete Act V
Find the Desomorphine
Listen to all TV news
Find Some Toy
Find the First Phylactery
Complete Act IV
Find 15 documents
Complete Act III
Speak to Father Abraham on the phone
Cycle through all 3 surveillance cameras
Find Ramona's Tape
Complete Act II
Find the Icon of Christ
Complete Act I
Have a close encounter with Martha
Find the Old Camera
Find a first document