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