Guide · system
Soulstones: what they are and where to find them
~4 min read·Reviewed v1.00.09·Updated 2026-06-04
How Soulstones drop
Every Act boss and most Stage bosses grant Soulstones on kill. The first-clear bonus is bigger than subsequent clears — push to the highest stage you can clear before farming lower-stage Soulstones.
Where to spend them
- Hero upgrades (after you've already unlocked the hero)
- Special party-slot expansions
- Endgame conversion into rare materials — only worthwhile once you're done with hero progression
Soulstones are consumed permanently when spent. Don't dump them all on a hero you might re-spec out of — the cost to switch is steep.