Here is the full list of all 35 STEINS;GATE: Linear Bounded Phenogram achievements.
Completed everything in STEINS;GATE - Linear Bounded Phenogram.
Viewed all TIPS.
Viewed all messages.
Cleared "Lunar Bifröst."
Unlocked all CGs.
Unlocked a hidden scenario.
Cleared "Abduction Across Three Worlds."
Unlocked a final scenario.
Cleared "The Quantum Awakening."
Unlocked 75% of CGs.
Cleared "Eternal Polaris."
Cleared "Superhero Chat-Noir."
Unlocked 50% of CGs.
Cleared "Vermillion Soteria."
Cleared "Built with Love."
Replied to a message from someone in Phone Trigger.
Viewed a message in the Phone Trigger reception history at least once.
Changed the ringtone for Phone Trigger.
Changed the wallpaper on the Phone Trigger standby screen.
Viewed Phone Trigger transmission history at least once.
Opened the MOVIE LIBRARY.
Opened the SOUND LIBRARY.
Opened the CG LIBRARY.
Opened the CLEAR LIST.
Cleared "Hermaphroditus in the Labyrinth."
Unlocked a 3rd stage scenario.
Cleared "Ghostly Rendezvous."
Unlocked 25% of CGs.
Opened the TIPS LIST.
Unlocked a 2nd stage scenario.
Cleared "The Caged Bird Sings."
Unlocked a 1st stage scenario.
Cleared the game with an unread message in Phone Trigger.
Cleared "Dr. Jekyll Online."
Started STEINS;GATE - Linear Bounded Phenogram.