01
Appetizer
Level 0 → 1Friend, let's challenge that enormous, slimy land creature.
Trials
TRIALS
Halibut
14 trial stages. Boss progress raises weapon level
How it works
Section titled “How it works”Owning Halibut registers trials under Halibut Legend in Commissions. The first meeting is how you get the weapon, not a second registration gate. Each boss milestone raises weapon level by 1, up to 14. Levels only go up.
Bosses can be cleared out of order. If you already defeated a boss, the matching entry auto-completes once your weapon level reaches that stage. Entries not yet unlocked do not appear early.
While holding Halibut, the left tracker shows the active target: if the boss is absent, it prompts you to summon; if present, progress tracks remaining HP. The Boss Rush branch of the final stage has no trackable target; start it with the Terminus. Primordial Wyrm remains trackable if you take that path instead.
Trials only raise weapon level. Domain layers and Abyssal Resurrection do not use this progress. Weapon level itself sets how many eyes you can open for free in the Abyssal Domain panel.
Trial Progress 0 / 14
0
7
14
The 14 stages below follow in-game order. Titles match Commissions. The table lists titles and targets only. Each card below keeps the in-game briefing; Objectives on the cards are Wiki supplements for the actual boss targets.
| # | Title | Target |
|---|---|---|
| 1 | Appetizer | King Slime |
| 2 | Uninvited Eye | Eye of Cthulhu |
| 3 | Jungle Visit | Queen Bee |
| 4 | Rest and Departure | Skeletron, Wall of Flesh |
| 5 | Steel Tide | The Destroyer, The Twins, Skeletron Prime (any one), or Festersand Serpent |
| 6 | Clumsy Replica | Calamitas Clone, or Plantera |
| 7 | Batteries for Ruins | Golem |
| 8 | Dark Side of the Moon | Moon Lord |
| 9 | Cold Shower | Providence, the Profaned Goddess |
| 10 | Unyielding Wraith | Polterghast |
| 11 | God Slayer | The Devourer of Gods |
| 12 | Heating Up | Jungle Dragon, Yharon |
| 13 | Pinnacle of Creation | Exo Mechs (Ares, Apollo, Artemis, Thanatos), Brimstone Witch |
| 14 | Back to the Sea | Primordial Wyrm, or Battle of Terminus (Boss Rush) |
02
Uninvited Eye
Level 1 → 2There's a big eye staring at us. That's quite rude; we should teach it a lesson.
03
Jungle Visit
Level 2 → 3Life thrives not only in the Abyss but also in the Jungle. We should pay a visit to the queen bee there.
04
Rest and Departure
Level 3 → 4 A cursed skeleton that never decays—we need to put it to rest.
The cries for help from Hell are becoming more frequent. We should leave soon. I'm sure the Guide won't mind.
Tips: If the world is already in Hardmode and Skeletron is down, this entry auto-completes
05
Steel Tide
Level 4 → 5 Do you know how inanimate objects come to life? I once built a massive underwater machine that could launch missiles made of bubbles
and countless thermonuclear torpedoes. I used it to hunt gigantic creatures living 10,000 meters below the sea—until I met...
Oh, I digress. I think we'll soon have four mechanical friends visiting us, so we should be prepared.
Also, there's a mutated giant sea worm in the polluted waters above the Abyss. It used to be a gatekeeper at the Sulphurous Sea University.
It should still be quite friendly; we can go have some afternoon tea with it.
Tips: The commission briefing still mentions the Sulphurous Sea worm. Completion is any mechanical boss, or the Festersand Serpent.
06
Clumsy Replica
Level 5 → 6 The next research sample is the clone.
A crude replica, yes, but it's saturated with that brimstone presence... excellent material for analysis.
...Oh, right. One more thing.
I'm fond of the jungle. It's practically my second home, brimming with life energy
on par with the deep abyss. However, we need to find a way to release it first.
Remember those giant bulbs underground? Go 'pick' them. It will... help with my botany degree.
07
Batteries for Ruins
Level 6 → 7 I enjoy archaeological digs. Last time I was wandering through the Jungle, I saw a massive ruin.
We should now have the key to open the door to that ruin. Let's go check it out.
Inside, there's an ancient machine waiting for us to power it up, just like a remote control for an air conditioner.
08
Dark Side of the Moon
Level 7 → 8 Do you know the secret on the far side of the Moon? There's a giant octopus, a sponge, and a starfish...
Oh, I mean, the lunar crisis is coming.
09
Cold Shower
Level 8 → 9 Now it's time for the solar crisis. A powerful energy being escaped from the far side of the Sun and burrowed into the planet's core.
We need to head down there and give it a cold shower.
10
Unyielding Wraith
Level 9 → 10 Countless indomitable souls from ancient battlefields have gathered now, hidden deep within the dungeon, and are becoming restless.
We can go down there and slay some of the wandering spirits. This might bring about a small storm in the Subspace, but it'll also lure them out.
11
God Slayer
Level 10 → 11 There's a species that is born and grows in space, capable of withstanding intense cosmic radiation and celestial-level energy.
We encountered one a long time ago, but now we face the champion among them—a being that claims to have devoured gods.
12
Heating Up
Level 11 → 12The Jungle's temperature has risen lately; I think that powerful dragon has returned.
13
Pinnacle of Creation
Level 12 → 13 We're about to face the pinnacle of inorganic creations, with unmatched firepower and defense.
Additionally, the Sulphurous Fire Altar seems capable of summoning something.
Tips: The left tracker points at the Exo Mech with the lowest HP
14
Back to the Sea
Level 13 → 14 In the Abyss lies a special stone—use it to face the final battle.
There's also a powerful sea creature that destroyed my machine; let's seek revenge.
Tips: Battle of Terminus has no trackable boss. Start it with the Terminus; completing it jumps straight to level 14