Decay of Logos achievements

Release the Masked Boy from the cage and exhaust all his dialogue lines.

Free Eitan and exhaust all his dialogue lines.

Unlock all the trophies.

Meet Yoran and exhaust all his dialogue lines.

Read all the Ancestral rune stones.

Collect all the memory ripples contained in the Echo Shells.

Knock on Nediva's door in the Bosk of Silens and exhaust all her dialogue lines.

Pick up one of each Mask type worn by the Masked Youths of the Wadi.

Open all the chests.

Collect all the pieces of King's Guard armor set.

Defeat the imprisoned Ancestral War Chief.

Defeat all the remaining Ancestral Brutes.