Here is the full list of all 46 Digimon Survive achievements.
Unlocked all achievements.
Beat the Master.
Completed the Moral route.
Saved Miyuki.
Encountered all monsters.
Evolved to Omegamon.
Completed the Wrathful route.
Beat Plutomon.
Completed Truthful route to the next generation.
Beat Fanglongmon Ruin Mode.
Beat Zhuqiaomon.
Beat Azulongmon.
Garurumon reached Mega level.
Floramon reached Mega level.
Dracmon reached Mega level.
Syakomon reached Mega level.
Labramon reached Mega level.
Beat Ebonwumon.
Lopmon reached Mega level.
Kunemon reached Mega level.
Beat Baihumon.
Beat MegaSeadramon.
Took the Truthful route.
Acquired 100 items while exploring.
Completed the Harmonious route.
Entered the final battle.
Beat Boltboutamon.
Renamon reached Mega level.
Falcomon reached Mega level.
Agumon reached Mega level.
Reached a fork in the story.
Beat Piedmon.
Beat Wendigomon
Agumon reached Ultimate level.
Beat Monzaemon.
Beat Garurumon.
Beat Cyclonemon.
Beat Arukenimon.
Beat Fangmon.
Evolved a Free Monster.
Beat Dokugumon.
Acquired your first item while exploring.
Agumon reached Champion level.
Recruited a Free Monster.
Agumon reached Rookie level.
Embarked on your adventure.