This walkthrough is for Zero Escape The Nonary Games: 999 PS4 Version. Please take note that the walkthrough may contains spoilers.
The True ending can only be achieved if you have already achieved the Safe/Zero Lost Ending before that.
Flow Chart
Follow the White route and remember that you must have seen the Safe/Zero Lost Ending before this.
Room Route:
- Start: 3rd Class Cabin
- Door 4: 2nd Class Cabin and Kitchen
- Door 7: Operating Room
- Door 1: Chart Room and Captain Quarters
- If you have met all the 4 key story criteria below and seen the Safe Ending, you will move on to the Library and Study
Key Story Criteria required:
- In the 2nd Class Cabin, after unlocking the Display Cabinet and removing the tiles, take the 4 leaf clover bookmark from Santa.
- In the Kitchen freezer, after finding the Dry Ice, respond to June’s conversation about the sublimation point of CO2 with “It did seem to Junpei as rather odd.”
- In the Operating Room Chemical Closet, when Seven is trying to remember something relating to the coffin, reminds him by responding with “know about ice-9?”
- When you are prompt whether you want to give the 4 leaf clover bookmark to Clover, choose to give it to her.
Sharbit Guide 