Antewise

SteamWorld Quest: Every Chapter and the Ch18 Immunity

Updated 31 Oct 2026 Source Cross-checked against IGN SteamWorld Quest wiki Chapter 18 guide (three-battle structure, merchant access between battles, Very Rare material rewards, Hero Statues, 700+ gold from selling Moonjuice, named loadouts), zelda.zone SteamWorld Quest guide and walkthrough (per-boss immunities and drops, recommended levels 35-40+, repeatable Chapter 18 for infinite Advanced Materials, Squire difficulty tip), steamworld.fandom.com Chapters page (Act structure, chapter 1-2 contents, secret areas and chests), IGN Chapter 8 guide (per-area walkthrough style, enemy defenses), steamcommunity all achievements guide (boss names, level cap 99 but soft cap near 50, final boss cleared at level 45). By
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.

Hand of Gilgamech is a card-battler RPG across 18 chapters in four acts. The structure matters because almost every boss in it has elemental immunities, and walking into a fight with the wrong deck is the main way players get stuck.

The four acts

ActWhereWhat happens
Act 1Green Fingers Grove → GoosebucketArmilly and Copernica fight the guardian Gomphus, return to a burning Goosebucket, and free Galleo from a cage. They fight Captain Canary.
Act 2The schoolThe gates are sealed from outside; Tarah and Thayne help the party take the universal key from the woods.
Act 3The Cursed WoodsInside the Cursed City.
Act 4The Darkfrost MountainsPursuing the dishonoured ancient hero before he can awaken the Behemoth.

The party grows in that order: Armilly and Copernica, then Galleo (chapter 2, along with deck-building and Heroic Chains), then Orik, then the twins Tarah & Thayne.

Bosses with their immunities

BossImmunities / resistancesNotes
Gomphus—Chapter 1. The meaty introductory boss. Also summons Shroomlings.
Captain Canary—Chapter 2, with the Narcassian Dragon.
Headmistress Hyapathia—Two turns, hits all allies, can stop single targets.
Teras Koloss——
The Dark Lord——
Mechathiranos——
Shadow DragonPhysical immune, uses ArcaneBurn and Poison are essential — its HP is enormous
Shadow Headmistress—Always hits the whole party, so bring full-team heals
Shadow KolossStrong vs Frost and Arcane, weak to Fire—
GilgamechNoneThe highest stats in the game

Chapter 18: the finale

The final chapter is three battles against shadow versions of your own party, then Gilgamech.

Between each battle you can visit the merchant, and there are Hero Statues to heal and save. Each win grants Very Rare materials for card upgrades.

Important: if you quit part-way through, you keep the rewards for battles already won — but you must restart the chapter from the beginning.

Battle 1: Reckless Knight, Arrogant Alchemist, Brooding Hermit

TargetDefensesThreat
Reckless Knight (fake Galleo)Physical +2, Fire immunityGains Fury at low health, raising attack strength
Arrogant Alchemist (fake Copernica)Fire +2, Frost +2, Storm +2Protects her side with Mana Barriers; Heroic Chain Thunder Wave can Paralyse
Brooding Hermit (fake Orik)Physical immunity, Arcane +2Heals allies; devastating Gigaton Punch

Kill order: the Alchemist first. Her barriers erase multiple turns of work, she is not immune to anything, and she has the least HP.

Alternative reading from another source has Reckless Knight at Physical +2 and Fire immunity, the Alchemist resisting Shock/Frost/Fire, and the Hermit resisting Physical and immune to Fire — so check your own encounter rather than trusting either list.

Then aim physical damage at the Knight and elemental attacks at the Hermit.

Battle 2: Repressive Sister and Burdensome Brother

Both are immune to Arcane; the Brother resists Frost and the Sister resists Fire. The Sister uses Physical Strength moves, the Brother uses Magical Arcane moves.

The swap: take the same setup as the last fight, but change everything on Tarah and Thayne from Arcane to Physical.

Battle 3: Wayward Spirit, Demon Warrior, Jovial Deity

Spirit is immune to Thunder, Demon to Arcane, Deity to Frost.

Kill the Deity with strong focused attacks — weaker attacks will actually heal it or waste a turn. Or leave it for last, since confusion may otherwise cause your characters to heal it by accident.

Final: Gilgamech

Not immune to any element — just the highest stats in the game and some extremely painful cards. Use Poison, Blind, Flinch, Provoke and debuffs. If you are not poisoning him you are missing over 1,000 damage a turn.

The two farms in this chapter

  1. Repeat Chapter 18 for infinite Advanced Materials. The boss drops come back every time.
  2. Sell your Moonjuice — it adds up to over 700 gold.

If you are stuck

  • Drop the difficulty to Squire. Immunities become tier 3 resistances and other resistances are nerfed, which changes the strategy significantly. You can switch difficulty during play.
  • Grind the Colosseum of the Cursed, or replay earlier chapters.
  • Re-equip for the element. The hard counters are not subtle: dragons need Arcane, the Koloss needs Fire, the twins need Physical.

Levelling

The hard level cap is 99, but enemies much lower level than you give negligible experience, so the soft cap lands near 50 — the enemies in the last few chapters are around level 50. The final boss falls to a team around level 45.

A good material farm before the finale: in Chapter 17, from the starting area go to the first save area near the shop, farm the monsters before the save room, then save to respawn them and repeat.

Frequently asked questions

How many chapters are in SteamWorld Quest?

18, structured across four acts. The story follows Armilly and Copernica, joined by Galleo, then Orik, then the twins Tarah and Thayne, as they pursue the dishonoured ancient hero through Goosebucket, the Cursed Woods and the Darkfrost Mountains.

What is the final boss of SteamWorld Quest?

Gilgamech, fought in Chapter 18 after three preliminary battles against shadow versions of your own party. He has the highest stats in the game and is not immune to any element, so your usual boss strategies work — plus Poison, Blind, Flinch, Provoke and debuffs.

What level should I be for Chapter 18?

35+ for the shadow dragon fights and 40+ for the Chapter 18 shadow party battle. The hard level cap is 99, but experience from much lower-level enemies becomes negligible, so the soft cap lands near 50. The final boss is beatable with a team around level 45.

Can I repeat Chapter 18 to farm materials?

Yes — and it is the best farm in the game. You can repeat the chapter to get the boss drops again, which means effectively infinite Advanced Materials for card crafting or selling. Note that if you quit mid-chapter you keep the rewards for battles already won, but you restart the chapter from the beginning.

What are the boss immunities in the Chapter 18 shadow fight?

Fake Galleo is immune to Physical and resists Arcane. Fake Copernica resists Shock, Frost and Fire. Fake Armilly resists Physical and is immune to Fire. Note this differs from the IGN listing for the Reckless Knight, which gives her Physical +2 and Fire immunity — check your own encounter.

Who should I kill first in the shadow party fight?

Fake Copernica. She is not immune to anything, she has the least HP, and she has an extremely strong full-team shield that erases multiple turns of effort every time she casts it.

What if the immunities make the fight impossible?

Turn the difficulty down to Squire. Immunities become tier 3 resistances instead and the other resistances are nerfed slightly too, which significantly changes the strategy required. You can switch difficulty at any time during play.

What drops from the Chapter 18 bosses?

The shadow trio drops Adamantium Ingot, Phoenix Plume and Azoth Jar. The Sister and Brother drop Ghostly Flame and the Focused Rage card. The Spirit, Demon and Deity drop Gold Lotus. Gilgamech drops the True Heroes card plus 15 of every basic material.

How do I survive Chapter 18?

Visit the merchant between every battle and upgrade your most-used cards. Heal and save at the Hero Statues that sit between battles. Sell all the Moonjuice you have collected for over 700 gold. And if a fight is stalling, leave and replay earlier chapters or the Colosseum of the Cursed for XP.

More SteamWorld guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.