Red Sun

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Cosmic Plushie.png
Cosmic Plushie.png
This item is dedicated to: Spoopyro
Red Sun
  • Red Sun.png
Stack digit 1.png
Damage500 Melee
Knockback4 (Weak)
Critical chance4%
Use time29 Slow
TooltipDrops a barrage of solar flares from the sky
'Over paradise'
Inflicts DebuffHoly FlamesHoly Flames
100% chance

Debuff duration5 seconds (Contact)
4 seconds (Flare)
2 seconds (Fragment)
Debuff tooltipDissolving from holy light
RarityRarity Level: 16
Sell 40 Gold Coin.png
Research1 required
Projectile created
Red Sun Flare
Red Sun Flare

The Red Sun is a craftable post-Moon Lord developer broadsword. When it is swung, a large number of solar flares fall from the sky at varying speeds and angles. The flares explode after some time or upon hitting an enemy, releasing multiple homing fragments when they do. Both the flares and the fragments ignore tiles. The blade, the flares, and the fragments all inflict Holy Flames. This can be considered the upgrade of the Celestial Claymore.

Its best modifier is Legendary.




  • The weapon's name and tooltip are references to the character Sundowner from the game Metal Gear Rising: Revengeance, with Sundowner's boss song being named 'Red Sun' and the lyrics containing the line 'Red Sun over Paradise'.
  • This weapon actually has a unique rarity, but is referred to here as Hot Pink for consistency between weapons.
    • This unique rarity alternates between rarity colors of crimson (#CC5650 ●) and magenta (#ED458D ●).


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Decreased Holy Flames durations from flares and direct hits from 10 seconds to 4 and 5 respectively.
    • No longer considered a fire weapon.
  • Now transitions between rarity colors of (#CC5650 ●) and (#ED458D ●).
    • Buffed damage from 2000 to 2500.
    • Resprited.
    • Increased Holy Flames duration from true melee hits from 8.33 seconds to 10.
    • Decreased Holy Flames duration from solar flares from 15 seconds to 10, and increased duration from smaller flares from 1.67 seconds to 2.
    • Changed its tooltip.
  • Increased solar flare Holy Flames duration from 3.33 seconds to 15, and it no longer collides with tiles for most of its duration.
    • Nerfed damage from 750 to 500.
    • Resprited.
  • Now requires a Draedon's Forge to craft instead of an Ancient Manipulator.
    • Buffed damage from 475 to 650.
    • Can now be dropped by Supreme Calamitas in Expert Mode.
    • Now requires an Ancient Manipulator to craft instead of a Hardmode Anvil.
  • 1.1.7: Buffed damage from 375 to 475.
  • Buffed damage from 275 to 375.