How do I install Stellar Decay?

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. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Stellar Decay work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Stellar Decay

Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by dinzeer · on CurseForge

"Stellar Decay" is a community-driven SlashBlade add-on named after its first two cosmos and wither-themed swords, allowing players to submit their own…

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.

Open in MC Java Mods Get it on Google Play →

"Withering Stars" is an add-on for the SlashBlade mod. This add-on doesn't have a fixed theme; it's named as such purely because the themes of the first two swords in the add-on were the starry river (cosmos) and withering.
This add-on can be considered a player-submission style mod. If you have prepared models and designs, you can submit them to the author. If accepted, your submitted weapon will be added in a future update.
Now, let's briefly introduce the two currently existing blades:

Cosmic Blade "Starry Night Dream": A cosmos-themed SlashBlade, heavily featuring starry night elements throughout the sword, possessing decent strength and a high potential ceiling.
Withering Blade "Wither": A wither-themed SlashBlade, ranking in the tier with a very high potential ceiling.

Summary:
"Withering Stars" is a community-driven SlashBlade add-on named after its first two cosmos and wither-themed swords, allowing players to submit their own weapon designs for inclusion.

Quick facts

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 CurseForge — 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.

File checked by MCModsHub

Ships as stellar_decay-1.1.6-forge.jar — drop this file into the mods folder
Download size: 5.6 MB
Download link checked 2 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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