Here is the full list of all 29 Eternal Hope achievements.
Come face-to-face with a troll.
Collect a heroic soul.
Save the hedgehog.
Enter the Dark Forest.
Meet the ancient turtle.
Collect an adventurous soul.
Collect your first soul.
Collect the first soul fragment.
Meet your first An'mu.
Befriend Heli.
Meet Heli.
Meet the girl in the cliff.
Start a new game.
Be saved by the hedgehog.
Save your girlfriend from the Shadow World.
Meet the trickster.
See Heli's true form.
Meet the Charon.
Enter the Forgotten City.
Enter the Temple of Souls
Meet your first Umbra.
Destroy Heliel's heart.
Collect a brave soul.
Collect a coward soul.
Collect a weak soul.
Collect a pure soul.
Collect a legendary soul.
Collect a condemned soul.
Collect a corrupted soul.