Known issueHow-toUpdated 2026-11-04 · 3 replies on Steam
Phantom Blade Zero: 66-day achievement
Short answer
No confirmed fix yet. This is a known issue reported by players; check back after the next patch.
The problem
Please consider adding a Steam achievement for completing the "66 Days" mode; this would encourage and motivate those who have already finished the game to play through it once more.