Here is the full list of all 49 AI: THE SOMNIUM FILES - there are nirvanA Initiative achievements.
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Mizuki Chapter 1. Toss your shoe with maximum power during Kizuna's Somnium. You're a champion!
Complete the Dream Album.
Find all the hidden eyeballs in Somnium.You're the master of hide-and-seek.
Ryuki Chapter 4Clear the VR section perfectly.
Ryuki Chapter 2Clear the VR section perfectly.
Ryuki Chapter 1Clear the VR section perfectly.
Mizuki Chapter 0. In Ryuki's Somnium, wear the pumpkin, loafers, and metal pipe. Shibuya style.
Ryuki Chapter 5. Hatch the Black and White Bear and the Wanderer during Iris's Somnium.
Ryuki Chapter 4Clear all quizzes during Amame's Somnium.It's not rigged, is it?
Collect more than 20,000 eyeballs.Thank you for picking them all up!
Mizuki Chapter 5See Hanako during Amame's Somnium.Having any dark dreams of late?
Mizuki Chapter 5Find all evidence perfectly during Amame's Somnium.Your accuracy is astounding!
Clear the 3rd Class Cabin.No death game this time.
Clear Ryuki Chapter Diverge.
Clear Resolution route.
Collect more than 50 Trivia files.
Chat with the Inspector during Ryuki Chapter 0, 4, and 5 and Mizuki Chapter 0, 2, 4, and Epilogue.
Mizuki Chapter 5Clear Amame's SomniumGood begets good, evil begets evil.
Collect all Persons files.
Clear Gen/Amame route.
Clear Kizuna/Lien route.
Collect more than 90 Appendix files.
Mizuki Chapter 4Clear Lien's SomniumThe suffering of unfulfilled dreams, achievements that can never be achieved.
Mizuki Chapter 4Clear Tearer's SomniumTo suffer from an undying grudge, a permanent sense of loss and misfortune.
Collected all [Adult]-type Eyeballies.
Mizuki Chapter 4Give chocolate to the Detective, Officer, and Shoma.Give me one too please.
Mizuki Chapter 4Clear the VR section perfectly.
Mizuki Chapter 3. Clear M1 route with no game over and no QTE fails during Masked Woman's Somnium.
Mizuki Chapter 3Clear Masked Woman's SomniumThere is no need to hesitate, there is only one destination.
Mizuki Chapter 3Clear the VR section perfectly.
Mizuki Chapter 2Clear Gen's SomniumSolid, unbreakable, stoic.
Mizuki Chapter 2Perform rank 3 cooking skill 3 times during Gen's Somnium.
Mizuki Chapter 2Clear the VR section perfectly.
Mizuki Chapter 1Clear Kizuna's SomniumColor in the clouds. A sign of good fortune ahead.
Mizuki Chapter 1Clear the VR section perfectly.
Inspect every object in Boss's room.My room is in the same state.
Clear Explosion route.
Ryuki Chapter 5Clear Iris's SomniumTo be free from everything.
Ryuki Chapter 4Clear Amame's SomniumCause and effect. An unlucky fate.
Clear Komeji/Shoma route.
Ryuki Chapter 4Clear Shoma's SomniumThe name is the reality, the reality is the name.
Ryuki Chapter 4. Almost get cursed by Adorooster during Shoma's Somnium. The chicken curse...
Ryuki Chapter 3Clear Komeji's SomniumTo have an outer face and an inner face. A false heart.
Ryuki Chapter 3Go to Atami with the Receptionist.
Ryuki Chapter 2Clear Tokiko's SomniumReach true enlightenment.
Ryuki Chapter 1Clear Chikara's SomniumObsessed with yourself and your own opinion. Never back down.
Ryuki Chapter 1. Listen to Ryuki's weird song. No idea where he got that from.
Mizuki Chapter 0Clear Ryuki's SomniumWake from your dream. Achieve enlightenment.