Here is the full list of all 33 Zero Escape: Zero Time Dilemma achievements worth 1,000 gamerscore.
Collected all achievements.
Cleared all fragments.
Finished CQD-END: 2.
Gained all Cinema Files.
Cleared all D-Team fragments.
Cleared all Q-Team fragments.
Cleared all C-Team fragments.
Successfully activated the Force Quit Box.
No one pressed the button, everyone lived.
Shot that person.
Finished Q-END: 2.
Successfully removed the helmet.
Finished C-END: 1.
Answered with the correct date.
Finished D-END: 2.
Protected Akane and obtain the X-Passes.
Obtained all Quest Files.
Completed all quests.
Correctly answered the Monty Hall Problem.
All the dice rolled 1s.
Lived a happy virtual life.
Shot a blank, everyone llived.
Drank the real antidote.
Completed 6 quests.
Finished D-END: 1.
Resisted temptation to press the button.
Finished Q-END: 1.
Went through your first bad ending.
Completed 1 quest.
Obtained 1 Quest File.
Watched all the cinematics in a fragment.
Gained 1 Cinema File.
Finished CQD-END: 1.