Eye of Cthulhu Mask
Armor · ArmorHead4★[Tides of Terraria] Throbs with the sinister energy of Eye of Cthulhu. Only the luckiest ever end up with one.
Eye of Cthulhu Mask is 12th of 202 head pieces by defense, at 350 against the 650 of Ancient Helm.
No recipe takes it as an ingredient. Whatever you build is the finished article, so there is no reason to hoard spares.
Details
At 15 weight each it eats carry capacity fast, so bring a mount or park a chest nearby.
Eye of Cthulhu Mask Crafting Recipe
Hallowed BarCrafting it takes 1 material across 1 type.
Where to Find Eye of Cthulhu Mask
Eye of Cthulhu Mask is not something you find lying around — you craft it, and the recipe is below.
The fight is at the back of the Sealed Realm of Terraria, and the map carries exactly one entrance pin for that realm — southeast of Fisherman's Point, with its own fast travel statue at the door. Unlock the statue on your first trip and every repeat run starts a few steps from the boss.
Using Eye of Cthulhu Mask Well
Do not farm the 10% roll. The craft costs a single Hallowed Bar and one guaranteed kill pays out 20–30 of them, so the first clear you finish already covers the mask plus a long stack of spares — the drop is a bonus, never the plan.
Eye of Cthulhu is Dark-element, which means Dragon Pals hurt it most and Neutral Pals are the worst thing you can bring, since Dark is the element that beats Neutral. Sort that before the first attempt rather than after a wipe.
Eye of Cthulhu drops the mask itself at a 10% rate, one per kill, on top of the 20–30 Hallowed Bar it hands over every single time. So roughly one clear in ten ends with the finished helmet in your bag without you crafting anything.
Alternatives and Upgrades
Step up from here and you get Plasteel Helmet at 364 defense; step down and it is Moon Lord Mask at 350. Weigh the jump against what the next tier costs you before committing the resources.
Other head pieces at a similar tier, for when you want to weigh this against the rest of its class:
