DatapacksJava
Lavaflow Data Pack (1.21.11) – A Dynamic And Deadly Nether Overhaul
Java data pack listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
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Lavaflow Data Pack transforms the Nether with multi-layered lava rivers, cascading lavafalls, vast oceans, and properly shaped valleys. Explore new biomes and structures in a more immersive and treacherous underworld! Enjoy playing this data pack!
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Features:
- Lavaflow completely overhauls the nether.
- Instead of the random noise of the vanilla nether, Lavaflow features specifically crafted terrain, like you are used to from the overworld – but way more 3d. Biomes are placed not at random but in places matching the terrain.
Screenshots:









Lavaflow Data Pack Download Links
Quick 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
File checked by MCModsHub
- Download size: 268 KB
- Download link checked 23 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.