Grand Blue is a One Piece-themed open-world RPG on Roblox developed by Eternal Pose. It launched into early access in mid-2026 and is positioned as a direct challenger to Blox Fruits. Players choose a side (Pirate or Marine), complete quests across an expanding map, hunt for cursed fruits, and unlock fighting styles. This hub covers what we can verify from first-party and tracker sources, stops where the evidence stops, and links to the codes page.
Snapshot
Figures below are tracker-reported as of early September 2026, not first-party API readings. The game's Roblox listing is at place ID 18335956021. Pro Game Guides lists Grand Blue as the #2 trending Roblox code game for the week of September 2, 2026.
What Grand Blue Is
Grand Blue is an open-world One Piece RPG. Players pick a crew, chase bounties, and sail across an expanding map hunting down the most powerful cursed fruits to awaken devastating powers. The core loop mirrors the genre's established formula — choose Pirate or Marine, grind levels, find fruits, learn fighting styles, and take on world bosses. The developer's own framing positions it against Blox Fruits, and the early-access cadence has been aggressive: new codes, balance patches, and content drops landing within days of each other.
Cursed Fruits and Rerolls
The two resources players care about most are Trait Rerolls and Race Rerolls. Trait rerolls let players re-roll their character's passive traits, while race rerolls change the character's race (which affects stats and abilities). Codes hand these out in bulk — a single code can give 10–20 trait rerolls and 5–10 race rerolls. Fruit Chests are another high-value code reward, giving players a chance at rare cursed fruits without relying on the random world spawn system. Celestial Coins are the premium currency used for the in-game shop.
Official Channels
- Grand Blue on Roblox — the game itself and its description field.
- Grand Blue Discord — the primary channel for new code drops and patch announcements.
- Developer X account @Bracterio — code and update announcements.
Codes
Grand Blue has an active code system. Codes are redeemed through the Customize Character menu (main menu) or the Settings → Codes tab (in-game). As of September 5, 2026, we cross-checked five trackers: IGN (Sep 1), Pro Game Guides (Sep 3), Destructoid (Sep 4), Radio Times (Sep 4), and Roblox Den (Sep 5). Eight codes appear across all five sources. One code (WorldBossBroke) is listed active by four sources but expired by Radio Times — flagged as disputed on the codes page. Destructoid additionally lists CelestialBlessing (3k Celestial Coins) which no other source carries — single-source, listed separately.
Go to Grand Blue Codes →
8 source-confirmed active codes, 1 disputed (WorldBossBroke), 1 single-source code (CelestialBlessing), and the full reward breakdown with sources.
Update Rule
We do not mark a code as active just because another page says it is active. This page records what was checked, when it was checked, and where the evidence runs out. Codes are dated source signals until verified in-game.