Carthus Sandworm
Carthus Sandworm
NG hp.png HP poise.png Poise souls.png Souls
0 3,180 6,000
1 4,646 18,000
2 5,111 19,800
3 5,343 20,250
4 5,575 21,600
5 6,040 22,050
6 6,272 22,500
7 6,505 22,950
Physical Absorption
physical-def.png Standard 20%
strike-def.png Strike 18%
slash-def.png Slash 40%
thrust-def.png Thrust -16%
Elemental Absorption
magic-def.png Magic 0%
fire-def.png Fire 5%
lightning-def.png Lightning 65%
dark-def.png Dark 2%
bleed.png Bleed Susceptible
poison.png Poison Immune
frost.png Frost Susceptible


The worm tumbled into the catacombs, and proceeded to dominate its new home in the Smoldering Lake.

— Description of the Yellow Bug Pellet.


Found in the Smouldering Lake, just before the entrance to the Old Demon King.

Item Drops



  • Its physical attacks cannot be blocked with a shield.
  • It appears wreathed in lightning during its beam attack, but touching it will not hurt you.
  • It can be cheesed by standing on the small stone bump between where it spawns and the door to the boss room. Wait there for it to stop moving, run forward and attack it, and then run back before it starts moving again.
  • The ballista projectiles will also deal heavy damage to the sandworm, and is able to kill it in just a few strikes. Note that the projectiles will penetrate its body, striking the ground where the player stands. There is a small dip in the ground near the right side (facing the sandworm) of the boss door that will shield you from the projectiles but still allow them to strike the sandworm, his AI also seems to be unable to attack you from there.


  • The Carthus Sandworm appears to be made out of corpses.

External links


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