Here is the full list of all 33 Zero Escape: Zero Time Dilemma achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Collect all trophies.
Clear all Q-Team fragments.
Clear all D-Team fragments.
Clear all fragments.
Clear all C-Team fragments.
Finish CQD-END: 2.
Gain all Cinema Files.
Successfully activate the Force Quit Box.
Shoot that person.
Finish Q-END: 2.
Successfully remove the helmet.
Finish C-END: 1.
Answer with the correct date.
Finish D-END: 2.
Live a happy virtual life.
Protect Akane and obtain the X-Passes.
Complete all quests.
All the dice roll 1s.
Correctly answer the Monty Hall Problem.
No one presses the button, everyone lives.
Resist temptation to press the button.
Obtain all Quest Files.
Shoot a blank, everyone lives.
Finish D-END: 1.
Watch all the cinematics in a fragment.
Complete 6 quests.
Drink the real antidote.
Finish Q-END: 1.
Go through your first bad ending.
Complete 1 quest.
Obtain 1 Quest File.
Gain 1 Cinema File.
Finish CQD-END: 1.