Here is the full list of all 51 11-11 Memories Retold trophies - there are 36 bronze, 13 silver, 1 gold and 1 platinum.
Get all trophies
Unlock the grudge ending
Unlock the revenge ending
Unlock the sacrifice ending
Unlock the betrayal ending
Take a photo of the rifle on Kurt's kitchen wall in "The Pursuit", fire the same gun in "Peace"
Find all the collectibles
Find all the collectibles from Part III
Unlock the forgiven ending
Collide with 20 ghosts or more
Don't collide with any ghosts
Take all the apples back to Lucie
Give some chocolate to a german soldier
Get out of the church of Passchendaele
Find all the collectibles from Part II
Cut the gas in Passchendaele
Find all missing boys from your village.
As Lotty, comfort the soldier under the tree
Take a picture of Kurt in "The Collapse"
Find all the collectibles from Part I
Do business with Joe
Take a picture of Lotty in Vimy trenches
Unlock the lone avenger ending
Go home to Julia
Listen to Barrett's tearful account of the lives lost under his command
See all the credits
Complete Part III
Unlock the peace ending
Choose to go and save Kurt
Threaten the soldier three times to learn the truth
Win the card game against the old ladies in Kurt's village
Win all card games
Use all your photographic film in one chapter
Bring all four wood pieces to the oven
Kick the football in the POW camp
Complete Part II
Cut the german communication
Help Daniel in Passchendaele
Perform all moves in the Dance sequence
Pull the cart of crosses in the cemetery
Score with the hidden football in Paris
Catch a rat in the tunnels
Find the hidden food stash in the tunnels
Purr with Lotty
Complete Part I
Finish Vimy battle without dying
Save Lothar
Send two pictures to Julia
Use one of the lifts on Vimy Ridge
Avoid all the mines
Explore Julia's Room