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Desktop/Console/Mobile/Switch/tModLoader-Only Content: This information applies only to the Desktop, Console, Mobile, Switch, and tModLoader versions of Terraria.
Charged Blaster Cannon
  • Charged Blaster Cannon item sprite
Stack digit 1.png
Damage100 (Magic)
Knockback2 (Very weak)
Critical chance4%
Use time20 (Very fast)
Velocity28 (effective)
RarityRarity level: 8
Research1 required
Projectile created
  • Charged Blaster Orb
    Charged Blaster Orb
  • Charged Blaster Cannon
    Charged Blaster Cannon
  • Charged Blaster Laser
    Charged Blaster Laser
Obtained from Obtained from

Charged Blaster Cannon in action.

The Charged Blaster Cannon is a Hardmode, post-Golem magic weapon that fires electric spheres and beams. In the Desktop version Desktop version, Console version Console version, Mobile version Mobile version, and Nintendo Switch version Nintendo Switch version, it has a 0.13*1/800 (0.13%) chance to drop from all basic enemies in the Martian Madness event. In the tModLoader version tModLoader version, it has a 11.11*1/9 (11.11%) chance to be dropped by the Martian Saucer during the Martian Madness event.

The Charged Blaster Cannon has multiple firing modes:[1]

  • A single tap of the Use / Attack button fires a small non-piercing orb.
  • Holding Use / Attack rapid-fires the small orbs at a rate of 6 orbs per second with a max of 6 small orbs shot per charge. Mana is only consumed on the first orb that is fired.
  • After holding Use / Attack for one second, a larger orb with infinite piercing and 2.5× the damage (250 base damage) will be fired.
  • Continuing to hold Use / Attack fires the larger orbs at a rate of 2 orbs per second up to a max of 3 large orbs per charge. Mana is only consumed on the first large orb that is fired. (The players mana would have only been drained of two times the listed mana cost upon reaching this point in the attack cycle)
  • Holding Use / Attack for two more seconds and continuing to hold it fires a large, solid beam. It deals 1.5× the damage (150 base damage) and hits all enemies in its path repeatedly, about five times per second. Mana is consumed every time the weapon's damage ticks (five times a second) while channeling the laser. The firing angle cannot be adjusted while the continuous beam is firing.

The attack is terminated when mana is depleted, the Use / Attack button is released, or 5 seconds of firing the beam have passed.

Its best modifier is Mythical.


  • Due to the high damage output and infinite piercing of the charged laser, this weapon is extremely useful for horizontal crowd control or against segmented bosses such as the Destroyer.
  • The fully charged laser's range is 300 tiles. Orbs travel much farther.
  • The fully charged laser is comparable to the Last Prism's condensed super beam, but with a lot less damage. (it deals about 10% of Last Prism's DPS: 150 damage per hit instead of 600 and 5 hits a second compared to 12 times a second which equates to 5/48th of last prism theoretical DPS)
  • Due to how the Charged Blaster Cannon only consumes mana on the first shot of each of the orb bursts, but consumes mana on each damage tick of channeling the laser, the player may wish to only charge the weapon up to the point of it firing the third large orb and stop charging the weapon before it fires the laser if they wish to use mana as resourcefully as possible.
    • Channeling the laser will however in most cases reward higher DPS compared to only shooting the orbs and then restarting the attack cycle repeatedly.


  • The item is a nod to the classic video game character Mega Man, who has a similarly shaped cannon called the Mega Buster. It can be similarly charged before firing, and the Charged Blaster Cannon's appearance as part of the player's arm when selected mimics the fact that Mega Man's robotic body has the gun built into his arm, along with the weapon's circular appearance.


  • Desktop 1.4.1: The player can now aim the beam when it is in the full beam mode.
  • Desktop
    • This weapon still charges, but it now fires constantly while charging.
      • For the first second of charging, it will fire 6 single-target pellets, each dealing a base damage of 100 (up from 50).
      • For the next two seconds, it will fire 3 total piercing blasts, each dealing a base damage of 250 (up from 100).
      • After this, it will shoot the laser beam, which is unchanged from the original implementation.
      • The player can also quick-fire pellets without charging. The fire rate of these pellets is much higher than the previous implementation.
    • The mana cost of charging is unchanged; however, quick firing will naturally consume more mana as the fire rate has increased significantly.
    • Now has 0.13*1/800 (0.13%) chance of dropping from common Martian Madness enemies instead of dropping from the Martian Saucer.


  1. Information taken from the Desktop version Desktop source code, methods AI() and AI_075() in Terraria.Projectile.cs. There may be inaccuracies, as the current Desktop version Desktop version is