Beating the Wall of Flesh flips your world into Hardmode, and the first thing every player wants is the new tier of metal. But the freshly generated ores do not just appear in your old mines waiting to be dug up. You have to actively create them by smashing the demonic Altars scattered through your world, and you have to climb a strict pickaxe-power ladder to mine each tier. This guide breaks down all three Hardmode ore tiers, their alternates, exactly how they spawn, and the pickaxe power each one demands.
How Hardmode ores spawn after the Wall of Flesh
When you defeat the Wall of Flesh, two diagonal stripes of converted terrain generate across the world in a “V” pattern: one stripe spreads the Hallow and the other spreads your world’s evil biome (Corruption or Crimson), running from the surface all the way down through the Underworld. The Wall of Flesh also always drops the Pwnhammer, and that hammer is the key to the entire ore system.
Hardmode ores are not present at the moment you enter Hardmode. They are generated when you destroy Demon Altars (in a Corruption world) or Crimson Altars (in a Crimson world) using the Pwnhammer or any superior hammer with at least 80% hammer power. Each altar you break seeds a fresh batch of ore somewhere in the world. The first three altars you smash establish the three tiers in order:
- The first altar spawns Tier 1 ore: either Cobalt or Palladium.
- The second altar spawns Tier 2 ore: either Mythril or Orichalcum.
- The third altar spawns Tier 3 ore: either Adamantite or Titanium.
Which variant you get in each tier is chosen randomly the moment the altar breaks. Once decided, that world will only ever generate that ore for that tier (except in special “drunk world” seeds, where both variants can appear). So a typical world gives you one of each pair, not both.
The three Hardmode ore tiers and their alternates
Each tier comes as a pair of visually distinct but functionally near-identical ores. The version your world rolls determines the look and slightly different stats of the gear you’ll craft, but the progression path is the same either way. Here is the full breakdown, including the pickaxe power required to mine each one.
| Tier | Ore (and alternate) | Altar that spawns it | Pickaxe power needed | First tool that can mine it |
|---|---|---|---|---|
| 1 | Cobalt / Palladium | 1st altar | 100% | Molten Pickaxe (100%) |
| 2 | Mythril / Orichalcum | 2nd altar | 110% | Cobalt / Palladium Pickaxe (110%) |
| 3 | Adamantite / Titanium | 3rd altar | 150% | Mythril / Orichalcum Pickaxe (150%) |
Notice the ladder: your pre-Hardmode Molten Pickaxe (100% power) can already mine Tier 1, so you don’t need anything new to get started. But you must craft a Cobalt/Palladium Pickaxe (110% power) before you can touch Tier 2, and a Mythril/Orichalcum Pickaxe (150% power) before you can mine Tier 3. You cannot skip rungs.
Tier 1: Cobalt and Palladium
This is your entry point. As soon as you break that first altar, blue Cobalt or pinkish-orange Palladium veins generate underground. Because the Molten Pickaxe sits at exactly 100% pickaxe power, you can mine Tier 1 immediately with the best pre-Hardmode tool. Smelt the ore into bars at a regular Furnace (Cobalt smelts at 3 ore per bar) and craft your first Hardmode pickaxe and drill, which jump you to 110% power and open up Tier 2. Palladium gear leans into a damage-over-time healing regen set bonus, while Cobalt is the lighter, cheaper option.
Tier 2: Mythril and Orichalcum
With a 110% pickaxe in hand, you can now mine the green Mythril or pale Orichalcum ore that the second altar seeded. Mythril smelts at 4 ore per bar at a regular Furnace, but here’s the important step: you need the bars from this tier to build a Mythril Anvil (10 Mythril Bars) or Orichalcum Anvil (12 Orichalcum Bars) at a pre-Hardmode Iron or Lead Anvil. That Hardmode anvil is mandatory for crafting almost all higher-tier Hardmode gear, including the Tier 2 pickaxe that hits 150% power. Orichalcum has slightly lower stats than Mythril across the board but adds a flower petal damage effect to its armor set.
Tier 3: Adamantite and Titanium
The 150% Mythril or Orichalcum Pickaxe is what finally lets you mine the third tier. But Adamantite and Titanium can’t be smelted in a normal Furnace. You first need to craft an Adamantite Forge or Titanium Forge, each made from 30 of the corresponding ore plus a Hellforge at a Mythril or Orichalcum Anvil. These upgraded forges act as a combined Furnace and Hellforge and are also required later to smelt Chlorophyte Ore. Adamantite and Titanium gear is the strongest pre-mechanical-boss armor, and the Pickaxe Axe or Drax you craft afterward (200% power) carries you into the post-Plantera world.
Breaking more altars: diminishing returns and consequences
After the first three altars, the cycle repeats: altar four spawns Tier 1 again, five spawns Tier 2, six spawns Tier 3, and so on. The catch is diminishing returns. According to the official wiki, altars four through six spawn only half as much ore as the first set, seven through nine spawn one third, and the pattern continues to shrink. Breaking around 12 altars roughly doubles your starting yield; reaching triple takes about 33 altars.
Breaking an altar also has side effects. Each one spawns one or two Wraith enemies, and the act of destroying altars enables the Mechanical Bosses (The Destroyer, The Twins, Skeletron Prime) to begin spawning naturally at night with a small nightly chance. In current Desktop versions (1.4.4 and later), breaking an altar does not randomly convert blocks elsewhere into Corruption, Crimson, or Hallow. This is a meaningful version difference: in older builds, altar-smashing was infamous for scattering evil/Hallow blocks around the world, so newer players reading old guides should be aware the penalty was removed. Desktop 1.4.5.0 also standardized vein sizes across all three Hardmode ore tiers.
Frequently asked questions
Why can’t I find Hardmode ore in my old mines?
Hardmode ore is not generated until you destroy altars with the Pwnhammer. The first altar creates Tier 1 (Cobalt/Palladium), the second Tier 2 (Mythril/Orichalcum), and the third Tier 3 (Adamantite/Titanium). The ore appears in unexplored underground areas, so you’ll need to dig fresh tunnels to find it.
Can I get both ores in a pair in the same world?
In a normal world, no. Each tier randomly locks to one variant the moment its altar breaks, so you’ll get either Cobalt or Palladium, not both. The exception is special “drunk world” seeds, which can generate both variants of each pair.
What pickaxe do I need for each tier?
Tier 1 (Cobalt/Palladium) needs 100% pickaxe power, which your existing Molten Pickaxe already has. Tier 2 (Mythril/Orichalcum) needs 110%, met by a Cobalt or Palladium Pickaxe. Tier 3 (Adamantite/Titanium) needs 150%, met by a Mythril or Orichalcum Pickaxe. You must work up the tiers in order.
Mining the full ore ladder is far faster and more fun when a group splits up the altars and tunnels, and a persistent world means your shared progress is always there when friends log on. If you want an always-on world for your group, you can set up a Terraria server to grind Hardmode together, and our Terraria server setup documentation walks through getting it running. For more context on what spawns where, see our Terraria Biomes Guide, and if you’re still working toward Hardmode, read how to beat the Wall of Flesh first.
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