Here is the full list of all 31 MADiSON achievements.
Find every collectible in the game.
Unlock every achievement of the game.
Find every blue collectible.
Find every red collectible.
Take 500 photos.
Complete the game taking 40 or fewer pictures.
Complete the game taking 75 or fewer pictures.
Finish the game under 2.5 hrs.
Complete the game in hard mode or higher.
Survive through the entire Blue Knees section.
Blind Blue Knees five times.
Complete the mausoleum section under 5 minutes.
Survive through the entire Cathedral section.
Complete the tunnels section under 3 minutes.
Complete the game.
Finish the game under 6 hrs.
Let Blue Knees kill you.
Make the four virgins cry.
Reach Luca's storage limit.
Find Elizabeth's diary lost page.
Play the "Do not listen" tape.
Complete the shelves section under 5 minutes.
Get back to the main house a second time.
Take 100 photos.
Let Hans kill you.
Find a collectible.
Store an item for the very first time.
Get back to the main house for the first time.
Take 50 photos.
Break the shovel.
Find the hidden message on the mirror.