ModpacksJava
Atzlk MC: Optimised Modpack
Java modpack listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Official Modrinth Modpack for Atzlk MC Weather Server. Free Minecraft Java modpack for 1.21.11.
⬇ Download on ModrinthQuick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- 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.
File checked by MCModsHub
- Downloads as Atzlk MC Optimised Modpack s4.1.mrpack
- Download size: 7 KB
- Download link checked 30 Oct 2026 — working
These come from our own check of the pack file, not from the source page.