Here is the full list of all 49 Root Double -Before Crime * After Days- Xtend Edition achievements.
Obtained all achievements.
Set Salyu's Senses to her maximum value, and set all other characters' Senses to their minimum values.
Set everyone's Senses to their minimum values.
Set all female characters' Senses to their minimum values.
Set a character's Senses to their minimum value.
Unlocked all TIPS.
Viewed all scenes.
Unlocked all memories in Xtend Episode.
Opened Xtend Episode.
Viewed all Bad Endings.
Viewed all endings/epilogues.
Viewed √D Normal Ending 3.
Unlocked all event CGs in Album.
Viewed √D Normal Ending 2.
Viewed √D Normal Ending 1.
Viewed √D Good Ending After.
Viewed √D Good Ending BEFORE.
Viewed √D True Ending.
Unlocked all music tracks in Music.
Viewed Yuuri's bonus √D Epilogue.
Viewed Salyu's bonus √D Epilogue.
Viewed Mashiro's bonus √D Epilogue.
Unlocked all "Beyond*BEYOND" TIPS.
Viewed Jun's bonus √D Epilogue.
Viewed Kazami's bonus √D Epilogue.
Viewed Ena's bonus √D Epilogue.
Viewed √D Good Ending Before.
Viewed √D Good Ending AFTER.
Set everyone's Senses to their maximum values.
Erased all malice in the RAM System.
Viewed the RAM System tutorial.
Unlocked 50% of TIPS.
Started √D.
Viewed √C Good Ending.
Viewed 50% of scenes.
Started √C.
Viewed √B Good Ending.
Unlocked 50% of event CGs in Album.
Started √B.
Opened the MAP screen.
Viewed at least one Bad Ending.
Viewed √A Normal Ending.
Opened the TIPS screen.
Viewed √A Good Ending.
Unlocked 50% of music tracks in Music.
Viewed the Senses Sympathy System tutorial.
Set a character's Senses to their maximum value.
Opened the Senses input screen.
Started √A.