Alterna is a mod that aims to transform the game bit by bit, one "phase" at a time.
Each phase will have many versions released to add onto the theme, almost like this mod's version of game drops.
Please check the changelogs for more information, they're very detailed!
You can also join the Discord server to keep up with news or share feedback.
Dev Team
lycanlucy
Art Team
VitreousGlassy | ianaduarte | cw.png | OyamaCallista | Decadenza
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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.
Verified by MCModsHub
- Ships as alterna-1.3.1.jar — drop this file into the mods folder
- Download size: 2.9 MB
- Download link checked 1 Sept 2026 — working
These come from our own check of the pack file, not from the source page.