Here is the full list of all 24 Twin Mirror achievements.
Stay in your hometown
You've made 60% of your decisions as your social self
You kept Anna alive by putting yourself in your opponent's shoes
You've chosen your social self
Crack the code on Nick's fishing bag on your first try
Find all the mementos
Talk to Anna without asking for advice
Reconstruct Dennis's murder without help
Find your way out of the infinite hallway without help
Leave for pastures new
You've made 60% of your decisions as your analytical self
You kept Anna alive by outsmarting your opponent
You've chosen your analytical self
Finish the "Refuge" scene
Finish the "To catch a fish" scene
Relive all your memories
Finish the "Ghosts" scene
Play an old favorite
Finish the "Wake up!" scene
Finish the "Raise a glass" scene
Find one memento
Finish the "Memory lane" scene
Relive one memory
Explore all the endings