Part of the Sea of Conquest Mechanics Series:

Combat Mechanics Hub: How fights resolve (Start Here).

Sea Monsters and Kraken: Fighting krakens, as opposed to owning one.

Events Hub: Hell Corridor and the daily material loop.

Ship Tier List: What is on the ship list.

Quick Answer

The Behemoth is not a ship. It is a Kraken companion — a separate progression system where you hatch, raise and evolve a sea monster of your own, then bring it into battle.

It runs on its own track: growth stages (egg → Juvenile → Growth → Mature → Peak), seven grades from F to S, and a talent tree that works much like Radiance Enhancement. The materials come almost entirely from Hell Corridor, a daily event, which makes the Behemoth one of the few systems in the game where missing days is genuinely unrecoverable.

If you searched "Behemoth" expecting a hull, that is a very common mix-up — the actual ship list is in the ship tier list.

How the System Works

Growth stages

Your Behemoth starts as an egg and advances through Juvenile → Growth → Mature → Peak. Each stage raises its ceiling and unlocks more of what it can do. Stages are gated by materials rather than by time alone, so progress is a function of how consistently you farm.

Grades: F through S

Separately from stage, a Behemoth carries a grade from F up to S — seven steps. Grade is the quality axis; stage is the maturity axis. A high-stage low-grade Behemoth and a low-stage high-grade one are different problems, and you generally push both.

Talents

Behemoth talents function like Radiance Enhancement — a points-and-materials tree that shapes what your companion actually contributes. Same principle as flagship talents: depth in one branch beats spreading across several, because the meaningful nodes are deep.

Hell Corridor: The Daily That Feeds It

Hell Corridor is a daily event and effectively the entire supply line for Behemoth progression.

It pays two things:

Behemoth Crystals — spent in the dedicated Behemoth Store
Dragon Powers — consumed directly for Behemoth levels

Do it every single day. This is the one system in Sea of Conquest where the advice is genuinely that blunt. Because materials come from a daily with no meaningful catch-up mechanism, a week missed is a week of Behemoth progression you cannot buy back with a burst of effort later. Players who treat it as optional end a season several grades behind players of identical power.

Add it to the daily two-minute routine from the progression guide, alongside filling your build queue and dispatching fleets.

Is It Worth the Effort?

Yes, with one honest caveat: it is a long-horizon system. The daily cost is small and the payoff accumulates over months rather than weeks, which makes it easy to deprioritise and expensive to have deprioritised.

Worth doing if: you log in daily anyway, your flagship is progressing normally, and you intend to still be playing this season in two months.

Deprioritise if: you are stalled at a flagship wall and need every spare minute on gated materials. Even then, run Hell Corridor — it is a daily, not a project.

Never: spend heavily to catch up a neglected Behemoth. The daily is cheap; the catch-up is not.

Behemoth vs Fighting Krakens

Worth separating, because the vocabulary collides.

Your Behemoth is a companion you raise and bring into battle — this page.

Sea monsters including wild Krakens are map targets you fight for gated upgrade materials, and they want a completely different approach: sustained damage and damage-over-time rather than burst, because their health pools are enormous. That is covered in the sea monsters guide.

The two systems feed different parts of your account. Monster hunting supplies flagship upgrade materials; the Behemoth supplies combat contribution of its own.

FAQ

Is the Behemoth a ship in Sea of Conquest?

No. It is a Kraken companion with its own growth stages, grades and talent tree. The ships are Black Raven, Dragon Lance, Crimson Sentinel, Warhammer and the rest — see the ship tier list.

How do I get Behemoth materials?

Hell Corridor, a daily event, which pays Behemoth Crystals for the Behemoth Store and Dragon Powers for levelling.

What are the Behemoth stages?

Egg, then Juvenile, Growth, Mature and Peak — with a separate grade scale running from F to S.

How do Behemoth talents work?

Like Radiance Enhancement: a materials-fed tree. Go deep in one branch rather than spreading points thinly.

Can I catch up if I stopped doing Hell Corridor?

Slowly, and not by spending. Materials are daily-gated, so the only real fix is resuming the daily and accepting the lost ground.

Should I prioritise Behemoth over my flagship?

No. The flagship gates cabins, which gate everything. Run Hell Corridor daily because it is cheap, and put everything else into the flagship.

Key Takeaways

The Behemoth is a Kraken companion, not a ship.
Stages (Juvenile → Peak) and grades (F → S) are two separate axes.
Hell Corridor daily is the entire material supply. Missing days is unrecoverable.
Talents reward depth, exactly like flagship talents.
Never spend to catch up — the daily is cheap, the catch-up is not.

Sea of Conquest Behemoth Guide: Kraken Stages, Grades and Talents