Operation: Starcleave Mod (1.21.1, 1.20.4) – Terraform The Cosmos From Your Backyard
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
⬇ Download
Operation: Starcleave Mod lets you unite Earth with the Heavens by triggering surreal, quasi-natural disasters that transform your world into a Celestial Landscape. It’s like a dimension mod but without the dimension. Instead, you reshape the overworld itself through cosmic chaos.
Features:
- Starcleaver Golems crafted with a Netherite Pumpkin and Crying Obsidian, then fueled with gunpowder to launch skyward
- Firmament Fractures created when golems crash into the sky, revealing the Starlit Sea Above
- Spawned from nuclear stormclouds, burrow into the ground and wait…
- Terrain under fractured skies becomes drenched in rainbow hues and transforms into Heavenly counterparts
- Flying squid-like mobs that spew rainbow trails and follow their miniboss leader
Screenshots:
Operation: Starcleave Mod Download Links
For Minecraft 1.21.1, 1.21
Fabric version: Download from Server 1 – Download from Server 2
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.4
Fabric version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.4
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 177805.mcaddon
- Download size: 1.4 MB
- Download link checked 24 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.