Calamity Mod Wiki
Cosmic Plushie.png
Cosmic Plushie.png
This item is dedicated to: Coballion
Universe Splitter
  • Universe Splitter.gif
Stack digit 1.png
Damage18000 Summon
Knockback7 (Strong)
Use time9 Very Fast
TooltipSummons an energy field at the mouse cursor
After the field has been deployed, it begins to summon multiple small beams
After several seconds have passed, an enormous laser beam appears at the field's position
This effect has a cooldown
Attempting to use this item during the cooldown will cause it to short circuit and do damage to you.
An ancient artifact from a previous age, it waits for your command...
This is a terrible idea, but it isn't yours anyways... right?
Inflicts DebuffUniverse Splitter CooldownUniverse Splitter Cooldown
100% chance

Debuff duration45 seconds (After usage)
Debuff tooltipYou cannot use the Universe Splitter
Inflicts DebuffElectrifiedElectrified
100% chance

Debuff duration4 seconds (Beams)
Debuff tooltipYou cannot move
Inflicts DebuffNightwitherNightwither
100% chance

Debuff duration4 seconds (Huge Beam)
Debuff tooltipIncinerated by lunar rays
RarityRarity Level: 16
Sell 40 Gold Coin.png
Projectiles created
Universe Splitter Huge Beam
Huge Beam
Universe Splitter Small Beam
Small Beam

The Universe Splitter is a craftable post-Moon Lord developer summon weapon. When used, a field appears at the player's cursor, and inflicts the player with the Universe Splitter Cooldown debuff. After two seconds, a red laser sweeps down from the sky towards the field every second for six seconds, slightly randomized in the angle shot. One second after the sixth shot, a huge white laser beam strikes down from the sky towards the center of the field. All laser beams inflict the Electrified debuff and pierce infinitely through targets. The main beam also inflicts the Nightwither debuff but cannot travel through solid tiles. If used while the cooldown is active, the weapon will drop a Martian Saucer scrap projectile which deals 10 / 20 damage to the player.

Despite being a summoning weapon, the beams created by the Universe Splitter can deal critical hits. It is therefore down to the preference of the player whether the Ruthless or Mythical modifier is desired.

A demonstration of the Universe Splitter's Attack.



Crafting Station
Draedon's ForgeDraedon's Forge
Draedon's RemoteDraedon's Remote1
Shadowspec BarShadowspec Bar5
Universe SplitterUniverse Splitter1


  • This weapon has the highest base damage of any weapon in the Calamity mod.