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  • Penumbra.png
Stack digit 1.png
Damage830 Rogue
Knockback8 (Very Strong)
Critical chance20%
Use time39 Extremely Slow
Velocity27 effective
TooltipThrows a shadow bomb that explodes into homing souls and flames
Stealth strikes make the bomb manifest on the cursor and explode into more souls
Inflicts DebuffDaybrokenDaybroken
100% chance

Debuff duration3 seconds (Shadow Bomb)
Debuff tooltipIncinerated by solar rays
Inflicts DebuffNightwitherNightwither
100% chance

Debuff duration3 seconds (Shadow Bomb)
Debuff tooltipIncinerated by lunar rays
RarityRarity Level: 14
Sell 40 Gold Coin.png
Research1 required
Projectile created
Penumbra Soul
Penumbra Soul

The Penumbra is a craftable post-Moon Lord rogue bomb. When used, it throws a shadow bomb that charges in the direction of the player's cursor and explodes into homing souls. The shadow bombs inflict the Daybroken and Nightwither debuffs for 3 seconds.

Performing a stealth strike with the Penumbra will cause a shadow bomb to appear at the location of the cursor which deals 85% damage, quickly exploding into many homing souls.

Its best modifier is Flawless.



Crafting Station
Cosmic AnvilCosmic Anvil
Ruinous SoulRuinous Soul6
Cosmilite BarCosmilite Bar8
Nightmare FuelNightmare Fuel20


  • The Penumbra could be considered a counterpart to the Hypothermia due to their similar recipes.
  • The penumbra is the lighter region of a shadow cast by an object.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Souls now home towards the closest enemy instead of the earliest enemy in the NPC array.
    • Bombs now spawn dust less frequently, and changed the color of its dusts from purple to black.
    • Increased sell price from 28 Gold Coin to 40 Gold Coin.
    • Stealth strikes now have an 85% damage modifier.
    • Bombs now last 4.16 seconds instead of 5, and inflict Daybroken and Nightwither for 3 seconds instead of 4.
    • Nerfed damage from 1008 to 830, but buffed shot speed from 8 to 9.
    • Bombs now last 5 seconds instead of 2.5, and now inflict Daybroken and Nightwither for 4 seconds on hit.
  • Decreased sell price from 36 Gold Coin to 28 Gold Coin.
    • Nerfed damage from 1600 to 1008.
    • Now requires a Cosmic Anvil to craft instead of a Draedon's Forge.
  • Fixed a grammar error in its tooltip.