Core Keeper Codex
1.2.1.5 · verified 2026-09-07

Legendary Mortar

Legendary · item level 20

Rarity
Legendary
Item level
20
Base damage
30
DPS
50.0 base ÷ cooldown
Attack cooldown
0.6s
Durability
—
Sell value
—
Stackable
No
Slot
Held
Object ID
9,139

What the damage number is, and what it is not

Base damage 30 is read straight from the game's files for this item at item level 20. 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What we do not publish is the number the game prints on the tooltip in a live world.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 It has been withdrawn rather than quietly corrected.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
Increase Sequence Explosion Total Max Explosions On Hit1—

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.

Crafting

IngredientAmount
Legendary Mortar Part31
Legendary Mortar Part11
Legendary Mortar Part21

Crafting time 1s.

Internal name LegendaryMortar. Components: AreaLevelAuthoring CooldownAuthoring EntityMonoBehaviourData GivesConditionsWhenEquippedAuthoring WeaponDamageAuthoring