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data pack

LavaflowMinecraft data pack for 1.21.11

Completely overhauled Nether: Lava rivers on 2 heights with lavafalls between them, proper valleys, oceans, and new biomes and structures.

server onlynewest supported release 1.21.11AdventureGame MechanicsWorldgen
Latest version
0.6.0
Minecraft
1.21.4 to 1.21.11
Works with
NeoForge, Forge, Fabric
Licence
AGPL-3.0-or-later
Downloads
11.3k
Updated
11 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Lavaflow servers

Deploy a server with Lavaflow already added to the world, on hardware built for it.

  • 1.21.11
  • Data pack
  • NeoForge
  • Forge
  • Fabric
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Lavaflow declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.11Data pack, NeoForge, Forge, Fabric21+declared9 Dec 2025
1.21.10Fabric, NeoForge, Forge, Data pack21+declared7 Oct 2025
1.21.9Fabric, NeoForge, Forge, Data pack21+declared30 Sept 2025
1.21.8Data pack, Fabric, Forge, NeoForge21+declared17 Jul 2025
1.21.7Data pack, NeoForge, Forge, Fabric21+declared30 Jun 2025
1.21.6Data pack, NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5Data pack, NeoForge, Forge, Fabric21+declared25 Mar 2025
1.21.4NeoForge, Fabric, Forge, Data pack21+declared3 Dec 2024

Download

From Lavaflow’s own host. Nothing is re-hosted here.

Most recently published release

0.6.0beta12 Dec 2025

lavaflow_0.6.0.zip · 0.3 MB · for 1.21.11

Download this release
47101a8de021…
Older versions11
  • 0.5.45 Oct 20251.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.60.3 MB1.3k downloads4f050964b915…Get
  • 0.5.330 Jun 20251.21.7, 1.21.6, 1.21.50.3 MB913 downloads43944ae2e983…Get
  • 0.5.218 Jun 20251.21.6, 1.21.50.3 MB262 downloads3437fe9e96b7…Get
  • 0.5.117 Jun 20251.21.6, 1.21.50.3 MB44 downloadse616afc659e4…Get
  • 0.5.019 Apr 20251.21.50.3 MB2.1k downloads6e0e9ff6de97…Get
  • 0.4.027 Dec 20241.21.40.3 MB1.5k downloads9b2936f60cc3…Get
  • 0.3.218 Dec 20241.21.40.2 MB135 downloadscbdc146f2426…Get
  • 0.3.118 Dec 20241.21.40.2 MB67 downloadsb5ecb96a0341…Get
  • 0.3.017 Dec 20241.21.40.2 MB69 downloads96bdcd217417…Get
  • 0.2.016 Dec 20241.21.40.2 MB64 downloads22fcd1a84b80…Get
  • 0.1.013 Dec 20241.21.40.4 MB36 downloads055e48ecf5fc…Choose file on publisher ↗

Frequently asked

Does Lavaflow work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Lavaflow declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Lavaflow support?

Everything the author has declared, from 1.21.4 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Lavaflow on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is Lavaflow under?

AGPL-3.0-or-later, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Lavaflow?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Lavaflow safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TectonicTerrain shaping brought to new heights, grander and more varied than ever before!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.

Details from Modrinth, where the author last updated it on 12 Dec 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .