Curse of the Calamity

Curse of the Calamity adds three bosses, each tied to a world event that spreads a curse across the Overworld, plus a new dimension called the Abyss where you can flip your gravity and walk on ceilings.

Requirements

Minecraft 1.21.1 on Fabric or NeoForge.

Required on both loaders:

• GeckoLib 4.6 or newer, for entity, boss, and item models and animations
• Player Animator 2.0.0 or newer, for the third-person combat animations

Fabric only:

• Fabric API
• Mod Menu (optional, needed to open the config screen)

NeoForge only:

• NeoForge 21.1.0 or newer

Bosses

Each boss lives in its own dimension and has a matching hazard that can appear in the Overworld.

Vaelen, the Corrupted (Nether). A fast melee boss with a giant scythe. Uses leaps, ground slams, combos, and a parry-stun mechanic. Its curse, the Corrupted Wastes, spreads flora infection and wears down armor. Drops Vaelen's Scythe.

Vulturnus, the Stormbringer (End). A large serpentine storm dragon that creates vortexes, calls down lightning, and pushes players around with strong gusts. Its curse brings Tempest Storms, with supercells and roaming tornadoes. Drops the Tempest Greatbow.

Bellatrix, Empress of the Abyss (The Abyss). A three-phase fight against a cosmic entity. She summons constellations, opens black holes that bend the screen, and dashes between floating islands. Her curse causes meteor showers. Drops the Empress's Stargazer, a staff.

Calamity curses

When a boss awakens, its curse starts to leak into the Overworld. Around ancient altars, a hazard zone grows over time, changing biomes, corrupting blocks, and affecting players inside it. It stops when you cleanse it or kill the boss.

The Abyss and inverted gravity

The Astral Gateway takes you to the Abyss, a dimension of floating structures over open space filled with stars. Inside the ancient sanctuaries you can eat Abyssal Fruit to invert your own gravity, which lets you walk on ceilings and explore ruins upside down.

Each gateway remembers who used it: when you come back from the Abyss you return to the gateway you entered through, and anyone entering from the Overworld arrives at the main Abyssal Sanctuary.

Weapons

All weapons have custom player animations.

• Vaelen's Scythe: a three-hit combo, a channeled spinning defense, and a ground finisher with an explosion.
• Tempest Greatbow: fires fast lightning arrows that strike the target from above.
• Empress's Stargazer: calls a meteor shower on a targeted location.
• Calamity Astrolabe: a compass that tracks active calamity anchors and boss positions, including across dimensions.

Abyssal wood

Abyssal Logs can be crafted into planks, stairs, and slabs. They use the vanilla tags (#minecraft:planks, #minecraft:wooden_stairs, #minecraft:wooden_slabs), so they work in recipes for crafting tables, sticks, chests, and wooden tools.

Music and effects

Boss music is analyzed in real time, and shockwaves, sky pulses, and arena effects follow the beat. The mod also adds a black hole lensing effect, a screen-shatter animation, and custom skyboxes.

Config

Available from the Mods screen (Mod Menu on Fabric) -> Config:

• Toggle natural invasions globally.
• Allow or forbid invasions for each boss (Vaelen, Vulturnus, Bellatrix).
• Turning off the global toggle disables every boss invasion, and enabling any single boss turns the global toggle back on.
• Boss music volume slider, 0% to 100%.

Commands

All commands start with /calamity and require OP or cheats enabled. Boss IDs: Vaelen, Vulturnus, Bellatrix.

Boss

Attack names:

• Vaelen: slam, bomb, spin, melee
• Vulturnus: lightning, hail, whirlwind, hurricane, chaos
• Bellatrix: black_hole, eclipse, vortex, anti_camp, spells, combo, spikes, kick, spin, dash (or island_dash)

Curse

Altars

Structures and dimension

Effects and debug

Effect IDs: inverted_gravity, conductive, astral_collapse, corrupting_decay.

Modpacks

You can include this mod in any modpack, public or private.