Core Keeper Codex
1.2.1.5 · verified 2026-09-07

Broken Legendary Sword

Rare · item level 10

Rarity
Rare
Item level
10
Base damage
129
DPS
322.5 base ÷ cooldown
Attack cooldown
0.4s
Durability
350
Sell value
—
Stackable
No
Slot
Held
Object ID
8,950

What the damage number is, and what it is not

Base damage 129 is read straight from the game's files for this item at item level 10. It is the right figure for comparing weapons: across the sword line it rises 33 → 50 → 132 → 163 → 214 → 248 → 280.

What we do not publish is the number the game prints on the tooltip in a live world. This site briefly did, using a formula fitted to an outside source, and it was wrong — it produced almost the same value for every weapon in a tier ladder, rating a Copper Sword above a Solarite Sword. It has been withdrawn rather than quietly corrected. The full account is on the method page.

What it grants while held

StatValueMultiplier
Increased Max Health31—

These are the condition values the game applies. The files do not label their units, so the raw value is shown rather than a percentage sign that might be wrong.

Where to get it

Best source is Azeos the Sky Titan at 20.30% per kill — about 11 kills for a 9-in-10 chance.

SourceChance per killKills for 90%AmountNote
Azeos the Sky Titan20.30%
111guaranteed group
Hive Boss7.52%
301guaranteed group
World Chest1.84%
1251
World Chest Nature1.81%
1261
Large Ancient Destructible1.24%
1861
Scarlet Chest0.45%
5141guaranteed group

Crafting

IngredientAmount
Iron Bar12
Gold Bar1

Crafting time 1s.

Used to craft

Legendary Sword

Internal name BrokenLegendarySword. Components: AreaLevelAuthoring CooldownAuthoring DurabilityAuthoring EntityMonoBehaviourData GivesConditionsWhenEquippedAuthoring WeaponDamageAuthoring