If your modpack is not at such a high power level, we recommend Cataclysm Apotheosis Addon Lite.
Required Mod.
Attributizer.
Pehkui
L_ender's cataclysm
L_ender's cataclysm is definitely a mod that adds a high difficulty boss but is far easier to beat in a modpack that adds multiple weapons. (unless the creator changes the configuration). Also in my opinion the boss is more vulnerable than it looks. A player with high attack power can defeat it in a few dozen seconds. Make the following changes to make this mod boss the end content boss of modpack.
Ender Guardian (spoiler alert) https://www.youtube.com/watch?v=qylDRq6svhg
Harbinger (spoiler alert) https://www.youtube.com/watch?v=ZjHtFLvXwvI
Ancient Remnant (spoiler alert) https://www.youtube.com/watch?v=O4gAhpBtjgA
Leviathan (spoiler alert) https://www.youtube.com/watch?v=Xh3gnByrMYM&t=203s
Ignis (spoiler alert) https://www.youtube.com/watch?v=YonTACiuBnE
Maledictus (spoiler alert) https://www.youtube.com/watch?v=9pvRfo3p6AA
CurseForge link https://www.curseforge.com/minecraft/mc-mods/cataclysm-apotheosis-addon
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as cataclysm_ut-53 - 1.20.1.jar — drop this file into the mods folder
- Download size: 132 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.