One Piece AI Dungeon world illustration - Pirate theme
Pirate

One Piece AI Dungeon

T
TheScryer

One Piece is set in a vast oceanic world filled with islands, dangerous seas, and ancient mysteries. The legendary treasure, the “One Piece,” lies hidden at the end of the Grand Line—a perilous route guarded by natural and supernatural threats. The world is ruled by the oppressive World Government, opposed by pirates, revolutionaries, and secret organizations. Themes of freedom, discovery, and ambition drive the narrative, as exploration and conflict shape the fate of the world.


Author's Note: Welcome to One Piece AI Dungeon — a fully crafted world with over 130 original islands, 100 unique spells, weapons, and Devil Fruit-inspired items. Live your own journey as a pirate, marine, or Cipher Pol agent. Explore vast seas, uncover ancient secrets, and challenge Yonko or Warlords. The latest updates now include the fearsome God Knights and connections to the current manga arc. Only one true treasure exists — the One Piece — and the four Road Poneglyphs are your only map. Build your dream crew, because in this sea, power alone isn't enough. Your legend begins now.
Played32 times
Cloned5 times
Created
28 days ago
Last Updated
6 days ago
VisibilityPublic
Sea King
CR 15Huge Monstrosity
Sea King
HP Range300 - 400 (Avg: 350)
AC20
XP13000

Description

The Sea King is a powerful aquatic entity that rules the depths of the ocean with an iron fist. It commands the tides and the creatures of the sea, often seen as a deity by those who dwell near the coast.

Details
SizeHuge
TypeMonstrosity
CR15
XP13000
LanguagesAquan, Common
Defenses
Armor Class20
HP Range300 - 400 (Avg: 350)
Damage VulnerabilitiesNone
Damage ResistancesNone
Damage ImmunitiesNone
Condition ImmunitiesNone
Actions

Summon Sea Creatures (1/Day)

The Sea King can summon 1d4+1 sea creatures of CR 5 or lower to aid it in battle.

Tidal Wave (Recharge 5-6)

The Sea King conjures a massive wave that crashes down in a 60-foot line that is 20 feet wide. Each creature in that line must make a DC 20 Strength saving throw, taking 45 (10d8) bludgeoning damage on a failed save, or half as much damage on a successful one.

Trident Strike

Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 30 (4d10 + 8) piercing damage.

This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC . The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License.
We are not affiliated with Dungeons & Dragons or Wizards of The Coast in any way.
© 2025 Friends & Fables
Privacy PolicyTerms of Service