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Old biomesMinecraft mod for 1.21.8

This mod will bring back the removed biomes from the game of minecraft. These biomes were removed with the adventures update in beta 1.8.

client and servernewest supported 1.21.8AdventureDecorationWorldgen
Latest version
3.0.0
Loaders
Forge, NeoForge
Licence
Apache-2.0
Downloads
11.0k
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Old biomes servers

One click and Old biomes is installed with the right loader, on hardware built for it.

  • 1.21.8
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 Old biomes declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.8Forge, NeoForge21+declared17 Jul 2025
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023

Download

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

3.0.0release22 Jun 2026

old_bioms-3.0.0-neoforge-1.21.8.jar · 25 KB · for 1.21.8

Download latest
c0403e5aa6d1…
Older versions2
  • 2.0.011 Apr 20241.20.160 KB192 downloadse151c8ab67d4…Get
  • 1.0.02 Apr 20241.20.143 KB138 downloads692746d62b29…Get

Frequently asked

Does Old biomes work on Minecraft 1.21.8?

Yes. 1.21.8 is the newest Minecraft version Old biomes 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 Old biomes support?

Everything the author has declared, from 1.19.4 up to 1.21.8. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Old biomes on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Old biomes support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Old biomes?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Old biomes under?

Apache-2.0, 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 Old biomes?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Old biomes 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Details from Modrinth, where the author last updated it on 22 Jun 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .