Full list of all 14 Abyss Odyssey achievements worth 400 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Finish the prologue.
Defeat the shopkeeper.
Defeat Paganini, the Demon Violinist.
Defeat Verbum Dei.
Defeat the Living Creature.
Defeat the Warlock.
Unlock the Pincoya.
Capture a level 10 enemy.
Capture a level 25 enemy.
Capture a level 40 enemy.
Uncover the Warlock's secret.
Equip Katrien with 3 fully upgraded special attacks.
Equip the Ghost Monk with 3 fully upgraded special attacks.
Equip the Pincoya with 3 fully upgraded special attacks.