L_Ender's Cataclysm6 hand-built boss fights with custom mechanics — Harbinger, Leviathan, Netherite Monstrosity, Ignis, Ender Guardian, Ancient Remnant
About
Cinema-grade boss content. Six themed dungeons spawn naturally across the world. Each houses a multi-phase boss with custom AI, attack patterns, and tier-defining drops. Bosses scale roughly: Harbinger (early), Leviathan (mid, deep ocean), Netherite Monstrosity (late Nether), Ignis (Nether forge), Ender Guardian (mini-end-dungeon), Ancient Remnant. Drops are used by Cataclysm Weaponery-tier weapon recipes. L_Ender's Cataclysm adds generated boss dungeons across the Overworld, Nether, End, and oceans, including Ruined Citadel, Soul Black Smith, Burning Arena, Ancient Factory, Sunken City, Cursed Pyramid, Frosted Prison, and Acropolis. Bosses such as Ender Guardian, Netherite Monstrosity, Ignis, The Harbinger, Leviathan, Ancient Remnant, Maledictus, and Scilla drop materials for gear like Infernal Forge, Void Forge, The Incinerator, Ignitium armor, and Cursium armor.
Getting started
Make a locator item first, usually a Monstrous Eye for the Nether Soul Black Smith route. Start with Eye of Ender ingredients: Ender Pearls from Endermen and Blaze Powder from Blazes in Nether fortresses, then check EMI for the pack's exact recipe. Cataclysm does not add a dedicated guide book; use EMI, EMI Loot, and Explorer's Compass.
What you can do
- Craft locator eyes such as Monstrous Eye, Flame Eye, Mech Eye, Abyss Eye, Desert Eye, and Cursed Eye.
- Clear structures including Ruined Citadel, Soul Black Smith, Burning Arena, Ancient Factory, Sunken City, Cursed Pyramid, Frosted Prison, and Acropolis.
- Fight bosses such as Netherite Monstrosity, Ignis, The Harbinger, Leviathan, Ender Guardian, Ancient Remnant, Maledictus, and Scilla.
- Use boss weapons and tools including Infernal Forge, Void Forge, The Incinerator, Cursed Bow, Tidal Claws, and Laser Gatling.
- Upgrade Netherite gear through Ignitium Upgrade and Cursium Upgrade smithing templates.
- Use Mechanical Fusion Anvil and Weapon Infusion recipes for late Cataclysm equipment.
Endgame goals
A top-tier Cataclysm setup is a Mechanical Fusion Anvil with boss-drop materials feeding Weapon Infusion, Ignitium gear, Cursium gear, and weapons like The Incinerator or Laser Gatling. Full completion means clearing the late structures, especially Ruined Citadel, Ancient Factory, Frosted Prison, and Acropolis, then saving boss drops for ATM-style quests and gated recipes.
Integrations with other AYN mods
- Lionfish API — required library dependency for Cataclysm's animations and entities.
- EMI — shows Cataclysm crafting, smithing, and upgrade recipes.
- EMI Loot — helps check boss drops and structure loot tables.
- Explorer's Compass — locates Cataclysm structures by registry entry.
- CURIOS API — equips Cataclysm curios such as Belt of Beginner, Blazing Grips, and Bloom Stone Pauldrons.
- Lootr — gives per-player loot access in generated Cataclysm structure chests.
Tutorials & resources
- CurseForge — L_Ender 's Cataclysm
- YouTube — search "L_Ender 's Cataclysm minecraft tutorial"
- Official CurseForge/project page: https://www.curseforge.com/minecraft/mc-mods/lendercataclysm
- Official Modrinth page: https://modrinth.com/mod/l_enders-cataclysm
- Official source link from the project page: https://github.com/lender544/new1.20.1
- VegaCraft German tutorial linked by the mod page: https://youtu.be/21k2s9t81us