Cyberdimension Neptunia: 4 Goddesses Online (EP)
50 Achievements
20-25h
PS4
Black Diamond Sword
Acquired the Sacred Treasure known as the Black Diamond Sword. Details for this achievement will be revealed once unlocked
58.8%
How to unlock the Black Diamond Sword achievement in Cyberdimension Neptunia: 4 Goddesses Online - Definitive Guide
TomoTakino
TrueTrophies
TrueTrophies
This secret trophy is for unlocking the second Sacred Treasure, the Black Diamond Sword. After clearing most of the Guild Rank 2 missions, an event will pop up in town where an NPC mentions filing a guild request to retrieve this treasure from the forest. Once you finish, accept the quest from the guild and beat the boss in Yiear Forest. Afterwards, you'll get the treasure and the trophy.
stgermain
Story related and cannot be missed.
After completing every possible quest and seen every possible event in the town, go to Yiear Forest and the spot marked by an exclamation mark. Defeat the boss Volcerios. It’s a flying enemy that can be hard to hit, but break it’s guard and it’ll fall to the ground where it’s easy to hit.
