Rell Seas: Beginner's Guide to Devil Fruits, Ships & Crew (2026)

Data compiled from Rell Seas early access research (2026). Rell Seas is actively updated — some fruit names, island unlocks, or ship stats may have shifted since launch. Core progression structure reflects the live game as of early access.

Rell Seas is the One Piece-inspired adventure from Rell Games, the same studio that built Type Soul. It's been in development for 3+ years, and the depth shows — this isn't a quick cash-grab on a popular anime. You've got Devil Fruits, island exploration, ship building, and a full crew system packed into one open-ocean game.

But that depth can be overwhelming on day one. This guide covers everything you need to stop flailing and start progressing: which fruits to prioritize, how to move through the islands, which ship to start with, and why joining a crew early matters more than you think.

Devil Fruit Tier List

Devil Fruits in Rell Seas come in three types: Paramecia (body alteration), Logia (elemental), and Zoan (beast transformation). Rarity ranges from Common up to Mythical — higher rarity usually means more powerful, but the specific fruit matters more than the rarity tier.

The short version: If you get a Lightning-Lightning or Dragon-Dragon fruit, keep it — those are the two Mythicals and they're the rarest drops in the game. Flame-Flame is the best Legendary for active combat because Fire Immunity gives you natural map control. For beginners, Gum-Gum is the most forgiving Epic to learn on.

All devil fruits share one weakness: you can't swim. Fall into the ocean and you lose health fast. Logia types are also weak to Haki attacks, which higher-level players will have — so don't assume elemental immunity will carry you in PvP forever.

Island Progression

Rell Seas is structured around a sea progression system. You start in East Blue, push through the Grand Line, and eventually reach the New World. Don't skip ahead — enemies scale hard and you'll get destroyed trying to farm an island your power level can't handle.

The jump from Grand Line to New World is steep. Dark Caverns and Yonko Territory enemies hit significantly harder, and the Yonko boss is a crew fight — you're not soloing it without endgame gear. The Mystery Fruit Guarantee from Dark Caverns is one of the best mid-game rewards in the game; it's worth farming the Shadow King even if you're still gearing up.

Which Ship to Pick

Your ship matters more than it seems. Early game, speed helps more than durability — you're exploring, not fighting fleets. Late game, you want a ship that can tank and deal damage.

Recommendation: Start with the Light Sailboat to move quickly through East Blue. Upgrade to the Merchant Caravel for Grand Line — the extra durability matters when you're taking cannon fire from island enemies. Once you're in a crew doing boss raids, the Battle Galleon or Warship becomes your go-to.

Ships can be upgraded across three categories: structural (durability), performance (speed and steering), and weapons (cannon damage and range). Focus structural upgrades first — a sunken ship ends a boss run immediately.

Crew System Explained

Crews hold up to 20 players and have a three-tier role system: Captain, Vice Captain, and Officer. The Captain has full authority — member management, declaring wars, vault access. Vice Captains handle day-to-day coordination. Officers get an XP boost (+10%) and limited vault access.

Joining a crew early has a real mechanical benefit beyond just having backup. Crew members share resources from crew raids and unlock crew-exclusive content that's simply unavailable solo. The best crews are organized — they schedule island runs and boss fights rather than just hoping everyone shows up at the same time.

If you can't find a crew, check the in-game crew board or the Rell Seas community Discord. Don't stay crewless past level 20 — the Dark Caverns boss is designed for group play and solo attempts are painful.

5 Tips for New Players

1. Don't eat the first fruit you find. Human-Human (Common) is the most common fruit drop in East Blue. Hold off if you can — a Rare or Epic from Coral Island is worth the wait.
2. Haki is mandatory at higher levels. Logia fruits give elemental immunity, but Haki attacks bypass it. Start grinding Haki early so you're not caught off-guard when Grand Line players hit you through your Flame-Flame immunity.
3. RELLcoins are everything. The main currency drives ship upgrades, sword purchases, and crew contributions. Farm enemies on islands you've already completed rather than struggling on islands above your level.
4. Join a faction. Marines and Pirates have different progression paths and exclusive missions. Faction choice affects your island access and what NPC allies you get in fights.
5. Upgrade your ship before your sword. A faster, tankier ship gets you to content faster and keeps you alive during runs. Sword upgrades matter, but not if your ship sinks every other island attempt.

FAQ

Is Rell Seas still in early access?

As of 2026, yes — Rell Seas launched in early access and is actively updated by Rell Games. Expect regular patches, new islands, and balance changes.

Who made Rell Seas?

Rell Games, the same developer behind Type Soul. Three years of development went into Rell Seas before early access launched.

Can I play Rell Seas solo?

Yes through most of the Grand Line. New World content and boss raids are designed for crews and become very difficult solo.

What's the best devil fruit in Rell Seas?

Lightning-Lightning and Dragon-Dragon are the two Mythical fruits and are the strongest in the game. For accessibility, Flame-Flame (Legendary) is the best fruit most players realistically obtain in a moderate amount of playtime.

Are there codes in Rell Seas?

Yes — active codes drop RELLcoins, Spins, and XP. Check the Rell Seas hub for the current code list.

Related: Blox Fruits Guide | Type Soul Hub | King Legacy Guide