Pirate
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.
Played | 32 times |
Cloned | 5 times |
Created | 28 days ago |
Last Updated | 6 days ago |
Visibility | Public |

Roscow Island
Area
Details
Size | 0 |
Type | Underground Crime Kingdom |
Description
Roscow Island is a sprawling underground city beneath a massive crater, blending historic and modern architecture. It serves as a secretive crime kingdom with a skyline of snowy skies visible through the crater opening.
Appearance
The cityscape features a grand castle, a Kremlin with striking blue brick walls and golden domes, and a cathedral adorned with colorful onion domes, all illuminated against the snowy crater sky.