Dungeons - Sailor Piece

Dungeons are a separate progression layer in Sailor Piece. They sit between the normal overworld boss loop and the more specialized rune and shadow farming routes. The current dungeon set is still compact, but it already shows a clear structure: keyed entry, multiple difficulty tiers, and wave-based progression.

Sailor Piece dungeon overview

Field	Value
Main entry item	`Dungeon Key`
Standard wave structure	`15 waves`
Listed difficulty tiers	`Easy`, `Medium`, `Hard`, `Extreme`
Shared dungeon note	Higher difficulty means tankier NPCs and better drop chances

All dungeons

Entry	Structure	Focus	Notes
1 Dungeon Key	15 waves, Easy to Extreme	Shadow Boss route and Shadow materials	The board notes that higher difficulty means tankier NPCs and better drop chances.
1 Dungeon Key	15 waves, Easy to Extreme	Rune drops from dungeon NPCs	The board uses the same higher difficulty note for better drop chances.
Shown on the current dungeon board	Visual listing only	Additional dungeon route	The current board only exposes the title and preview image here.

Shadow Dungeon

Shadow Dungeon in Sailor Piece

Field	Value
Entry	`1 Dungeon Key`
Waves	`15`
Difficulty	`Easy`, `Medium`, `Hard`, `Extreme`
Main mobs	`Raider`, `Commander`, `Black Knight`, `Knight`
Boss	`Shadow Boss`

Shadow Dungeon is the dungeon route tied to the Shadow progression line. The current dungeon listing frames it as a full wave dungeon that ends in the Shadow Boss, and it explicitly notes that higher difficulty means tankier enemies and better drop chances.

Rune Dungeon

Rune Dungeon in Sailor Piece

Field	Value
Entry	`1 Dungeon Key`
Waves	`15`
Difficulty	`Easy`, `Medium`, `Hard`, `Extreme`
Main mobs	`Raider`, `Commander`, `Black Knight`, `Knight`
Main reward focus	Runes can drop from dungeon NPCs

Rune Dungeon uses the same core dungeon structure as Shadow Dungeon, but the reward focus is different. Instead of centering on one boss route, it feeds the rune system.

Double Dungeon

Double Dungeon in Sailor Piece

Field	Value
Current status	Listed by name and preview image
What is clearly shown	It is a separate dungeon route
What is not clearly shown	Entry cost, waves, rewards, and difficulty details

The current dungeon listing shows Double Dungeon visually, but it does not expose the same written breakdown that the other two dungeon cards have. Because of that, this page only keeps the confirmed part of the listing instead of filling in missing details.

How dungeons fit into progression

Dungeon Key is the main entry item and is covered in Items and Accessories
Rune Dungeon connects directly to Runes
Shadow Dungeon connects to later Shadow materials and boss routes
The listed difficulty tiers treat scaling as part of drop-rate progression, not just enemy HP scaling