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data pack

JermsyBoy's World OverhaulMinecraft data pack for 26.1.2

JermsyBoy's Overhauled Biomes

server onlynewest supported 26.1.2AdventureMobsWorldgen
Latest version
1.20
Minecraft
1.19.4 to 26.1.2
Licence
LicenseRef-All-Rights-Reserved
Downloads
6.0k
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host JermsyBoy's World Overhaul servers

Deploy a server with JermsyBoy's World Overhaul already added to the world, on hardware built for it.

  • 26.1.2
  • Data pack
  • 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 JermsyBoy's World Overhaul declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
26.1.2Data pack25+declared9 Apr 2026
26.1.1Data pack25+declared1 Apr 2026
26.1Data pack25+declared24 Mar 2026
1.21.11Data pack21+declared9 Dec 2025
1.21.10Data pack21+declared7 Oct 2025
1.21.9Data pack21+declared30 Sept 2025
1.21.8Data pack21+declared17 Jul 2025
1.21.7Data pack21+declared30 Jun 2025
1.21.5Data pack21+declared25 Mar 2025
1.21.4Data pack21+declared3 Dec 2024
1.21.1Data pack21+declared8 Aug 2024
1.21Data pack21+declared13 Jun 2024
1.20.6Data pack21+declared29 Apr 2024
1.20.5Data pack21+declared23 Apr 2024
1.20.4Data pack17+declared7 Dec 2023
1.20.3Data pack17+declared4 Dec 2023
1.20.2Data pack17+declared20 Sept 2023
1.20.1Data pack17+declared12 Jun 2023
1.20Data pack17+declared2 Jun 2023
1.19.4Data pack17+declared14 Mar 2023

Download

From JermsyBoy's World Overhaul’s own host. Nothing is re-hosted here.

1.20release14 Apr 2026

JermsyBoy's World Overhaul V1.20.zip · 0.3 MB · for 26.1, 26.1.1, 26.1.2

Download latest
d198ba696f49…
Older versions19
  • 1.197 Mar 20261.21.110.3 MB151 downloadsa16eff4a1dbc…Get
  • 1.187 Oct 20251.21.9, 1.21.100.3 MB381 downloadsf2e50650be7b…Get
  • 1.1730 Jul 20251.21.7, 1.21.80.3 MB297 downloads8a0db325eb23…Get
  • 1.1628 Mar 20251.21.50.3 MB472 downloadsdf2b1465530c…Get
  • 1.1518 Dec 20241.21.40.3 MB736 downloads7c3acb01df17…Get
  • 1.1410 Oct 20241.21, 1.21.10.3 MB741 downloads31e644e71c4d…Get
  • 1.1322 Jul 20241.210.3 MB341 downloadsa60aebd97989…Get
  • 1.1217 Jul 20241.210.3 MB115 downloadsf810388a61dc…Get
  • 1.118 Jul 20241.210.3 MB130 downloads04b91a5dcc9d…Get
  • 1.106 Jul 20241.210.3 MB53 downloadsc1fba2f02af8…Get
  • 1.915 Jun 20241.210.3 MB220 downloadse7e45a476b1c…Get
  • 1.813 Jun 20241.210.3 MB63 downloadsf66531341489…Get
  • 1.74 Jun 20241.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4 +2 more0.3 MB719 downloadsded65fe2baf5…Get
  • 1.631 Jan 20241.20, 1.20.1, 1.20.2, 1.20.3, 1.20.40.3 MB568 downloads45d9bb585df9…Get
  • 1.528 Jan 20241.20.3, 1.20.40.3 MB51 downloads08ae990fb78d…Get
  • 1.422 Dec 20231.20.40.3 MB105 downloads9c892a08c25d…Get
  • 1.313 Sept 20231.20, 1.20.10.3 MB259 downloads85d63c1a0a9c…Get
  • 1.214 Jun 20231.20, 1.20.10.2 MB263 downloads6b26af7953d3…Get
  • 1.15 Jun 20231.19.4, 1.200.3 MB176 downloadsde5c182a3eb6…Get

Frequently asked

Does JermsyBoy's World Overhaul work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version JermsyBoy's World Overhaul 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 JermsyBoy's World Overhaul support?

Everything the author has declared, from 1.19.4 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install JermsyBoy's World Overhaul on the client or the server?

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

What licence is JermsyBoy's World Overhaul under?

LicenseRef-All-Rights-Reserved, 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 JermsyBoy's World Overhaul?

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 JermsyBoy's World Overhaul 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.

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!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!TrekBored of vanilla structure generation? This pack is for you!

Last checked 2 mo ago against Modrinth. 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? .