Lethality - A Terramity Addon logo

Lethality - A Terramity Addon

Mod

by Daphnesuki

A Terramity addon that intends to add weapons from the known Terraria mod, Calamity.

Downloads

1,190,287

Type

Mod

CurseForge ID

1282036

Last Updated

Apr 9, 2026

Description

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« Stained, brutal Calamity... »

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This mod is an addon for Terramity, it adds various weapons from the Calamity mod (originally from Terraria) and other games while trying to implement them in a vanilla-ish way.

Have in mind that  nothing is final and there can be some important changes in the future! Especially related to balance and crafting recipes.

Currently it adds:

  • 48  weapons.
  • 6 new materials.
  • 4 bonus items.
  • 2  armor sets.
  • 7 curios.

List of all the items:

Weapons:

  • Tainted Blade, a long forgotten and poisonous blade that inflicts Poison when hitting enemies.
  • Caustic Edge, evolution of the Tainted Blade, inflicts a stronger poison effect called Acid Venom.
  • Blighted Cleaver, builds up Acid Venom and Hellfire stacks, but also shoots a long-range flying projectile that pierces through enemies.
  • Defiled Greatsword, the last evolution of the Tainted Blade, builds up both Acid Venom and Hellfire, but shoots three projectiles instead of one.
  • Bladecrest Oathsword, a devilish sword that shoots homing scythes and burns enemies.
  • Forbidden Oathblade, evolution of the Bladecrest Oathsword, it has lost it's homing abilities but now it inflicts Shadowflame upon the enemies it hits.
  • Exalted Oathblade, direct upgrade to the Forbidden Oathblade, shoots three projectiles instead of just one and applies a stronger burn and Shadowflame effect.
  • Devil's Devastation, the last sword of the Bladecrest evolution tree, shoots three scythes and two pitchforks for a total of 5 projectiles, they all inflict Shadowflame and burn the enemy on contact.
  • Gael's Greatsword, the secret weapon of Calamitas, shoots three homing cursed skulls.
  • Violence, the first weapon from the Brimstone Witch's arsenal, a spinning trident that hits two times and  builds up stacks of two new debuffs that all Calamitas weapons inflict, Flames Hex and Stained Calamity.
  • Sacrifice, a stealthy dagger than inflicts immense damage from backstabs.
  • Vehemence, a magic staff made spear, it shoots an incredibly fast homing bolt that explodes when impacting an enemy.
  • Grievance, the last weapon from the arsenal, allows the user to engulf themselves on Brimstone Flames to receive a huge damage boost and lifesteal.
  • Starlight, taken directly from Terraria, it's a extremely-fast stabbing rapier that shoots a barrage of rainbow slashes.
  • Real Knife, taken directly from Undertale, grants the player a bar that slowly charges up with every kill. When full, it  consumes the charges and gives the Megalomaniac effect to it's owner, making them always land critical hits.
  • Pickle Paddle, an early-game weapon that shoots a fast stream of bouncy pickle balls, dealing more damage the more they bounce and allowing the player to deal constant damage while also keeping a bit of distance.
  • Midas Touch, an early-game greatsword. Has a 50% chance to trigger the Fortunate Coin's Coin Crit (1.5x crit) and, if used with said Coin, it will always land a stronger version of a Coin Crit (2.5x crit).
  • Gambler's Blade, the evolution of the Midas Touch. It no longer triggers random Coin Crits but now it's damage scales massively with  dices and luck-related curios. It also has it's own critical hit system that depends on the amount of Blood Coins the player currently has. Said coins are obtainable by killing enemies with the sword.
  • Nightmare Sword, the legendary sword from a well-known mod, a massive greatsword with three blades that hits three times, throws enemies into the air and gives them the Vulnerable debuff.
  • Nightfall, a mythical mace of a cruel lord, inflicts 5% of the enemy's max health as magic damage and allows the wielder to shield and heal themselves with the damage they've inflicted upon their enemies.
  • High Frequency Meowrasama, it's cute. And it purrs, that's all you need to know.
  • Stop Sign, stolen from a psychopathic  clown, gets faster the more damage it deals.
  • Miasma, the blighted blade from  a well-known dungeon, slowly starves the player while also making them stronger.
  • Horseless Headless Horsemann's Headtaker, a comically large axe with a  grinning smile that is able to cut off heads, while also boosting the wielder's speed and regeneration.
  • A heavy sword variant, also known as B.A.F.S, for each material, both vanilla and Terramity ones.
  • Four Excalibur variants to make the base mod's progression a bit less grindy. Also known as Bosscaliburs, considering each boss drop their own variant.

Bonus items:

  • Mate Amargo, a drink that grants the player a short Amped Effect. It's not consumed upon drinking.
  • Mate Dulce, a drink that grants the player an effect called Tranquility, making the player temporally invisible to hostile eyes.
  • Alfajor de Maicena, a food that heals a small amount of the player's life.
  • Escarapela, used to craft all these items.

Armor sets:

  • Battle Maid set, an alternative to the Conjuror set, focusing more on raw damage rather than defense.
  • High Frequency Maid set, the direct upgrade of the Battle Maid set, grants it's user a massive damage increase.

Curios:

  • Flowey Pin, an early-game accessory that grants it's user Strength I.
  • Backup SoS, a molde de empanadas that protects your back while you attack, shooting arrows with each attack.
  • Ultra Backup SoS, the upgrade of the previous curios, now bites instead of shooting an arrow.
  • Pale Branch, a piece of the Pale Garden's heart which makes you invulnerable to damage while standing still.
  • Warden Spine, the Phantom Amulet's upgrade.
  • Sorrowful Ghast, a Seafarer Scarf's side-grade that allows you to float in liquids while also being able to run, crouch and jump.
  • Charged Redstone Piece, a chunk cut off a }redstone Block that grants its user the Amped effect when they hit an entity.

Materials:

  • Pixie-enchanted Alloy, a new tier 3 material intended to make some of the weapons of this mod.
  • Annihilation Alloy, the first tier 4 material of the mod, used to craft weapons from the Brimstone Witch arsenal.
  • Improbability Steel, a metal that defies reality itself.
  • Soft Cloth, the counterpart of the Occult Fabric, used to craft the Battle Maid set.

 

Said items are all craftable and survival-friendly, so the player can enjoy them in a normal playthrough.

Even though it's not required, it is HEAVILY recommended to play with Better Combat since the way most weapons work is basically meant to be played with it.

If you find any bugs or crashes, please send me the logs via the Terramity discord post and I'll help you as much as I can!

Enjoy!

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