To open the temple in the volcano in Romestead, place 4 iron rods into the four stone levers, pull each one, break the jar that appears, then return to your home altar to give Vulcan the materials it requests. The volcano boss fight is tied to this sequence, and the altar request can vary by save, so check your own altar instead of copying someone else’s materials list.
How to open the temple in the volcano
Step 1: Find the temple marker
Head into the volcano area and open your minimap. The temple shows up as a money bag icon, which is the clearest landmark for this objective.
Step 2: Bring the iron rods
Before entering the puzzle area, collect 4 iron rods.
Each lever has an empty slot that specifically accepts a rod, so arriving without all four wastes a trip.
Step 3: Solve the lever puzzle
Around the temple, locate the four stone levers. Insert one iron rod into each slot, then pull every lever so the full set is activated.
Step 4: Break the jar
After all four levers are active, a jar appears nearby.
Break it to summon Vulcan, who then tells you to go back home and deal with the altar.
Step 5: Complete the altar request
Return to your base and interact with the altar. Vulcan will ask for materials, but the exact requirement can differ between saves, so use the altar prompt in your own game as the source of truth.
Volcano survival tips
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Fire damage is the real threat in this zone, and it hits harder than the desert poison.
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Open every chest you find because Aloe Vera Paste can appear there and boosts fire resistance.
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Move carefully instead of rushing fights; the zone punishes overconfidence quickly.
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If the altar request doesn’t match a guide you saw elsewhere, your save is probably normal, not bugged.
Critical mistakes to avoid
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Don’t enter the temple without all 4 iron rods.
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Don’t assume one lever activation is enough; all four must be completed.
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Don’t ignore the jar after the levers, because that is what advances the event.
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Don’t copy another player’s altar materials blindly, since the requirement can change by save.
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Don’t sprint through the volcano without fire resistance items, especially if your gear is still weak.
Final boss route
Once the temple sequence is complete and Vulcan sends you home, the rest is a simple handoff at your altar. That means the real bottleneck is the volcano puzzle itself: locate the money bag marker, solve the four-lever setup, break the jar, then finish the altar requirement in your base.
