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data pack

Cooler CavesMinecraft data pack for 26.3

A custom terrain expansion pack that makes biome specific caves

server onlynewest supported release 26.3AdventureMobsWorldgen
Latest version
2.7.1
Minecraft
1.21 to 26.3
Licence
GPL-3.0-only
Downloads
1.8k
Updated
20 d ago
Available on
Modrinth
Space NodeOur hosting

Host Cooler Caves servers

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

  • 26.3
  • 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 Cooler Caves declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
26.3Data pack25+declared15 Sept 2026
26.2Data pack25+declared16 Jun 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
1.21.6Data pack21+declared17 Jun 2025
1.21.5Data pack21+declared25 Mar 2025
1.21.4Data pack21+declared3 Dec 2024
1.21.3Data pack21+declared23 Oct 2024
1.21.2Data pack21+declared22 Oct 2024
1.21.1Data pack21+declared8 Aug 2024
1.21Data pack21+declared13 Jun 2024

Download

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

Most recently published release

2.7.1release18 Oct 2026

gm4_cooler_caves_26_3.zip · 0.5 MB · for 26.3

Download this release
0c1f3d0ed6ea…
Older versions20
  • 2.7.015 Sept 202626.30.5 MB44abe1e58cbe…Get
  • 2.6.416 Jun 202626.20.5 MB108 downloads86fe95622103…Get
  • 2.6.314 Jun 202626.10.4 MB15 downloads703490c693bc…Get
  • 2.6.219 May 202626.10.4 MB21 downloads50f28a00a70a…Get
  • 2.6.128 Mar 202626.10.4 MB49 downloads7e27cec86f74…Get
  • 2.6.024 Mar 202626.10.4 MB17 downloadsd9cad4d0f649…Get
  • 2.5.528 Feb 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +2 more0.5 MB130 downloads9c19991b1e7c…Get
  • 2.5.415 Jan 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +2 more0.5 MB78 downloadsbb99af66ee39…Get
  • 2.5.39 Dec 20251.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +2 more0.5 MB107 downloads9e0ef5a65a42…Get
  • 2.5.229 Nov 20251.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6 +1 more0.5 MB34 downloadsb785a62048ce…Get
  • 2.5.117 Jun 20251.21.8, 1.21.7, 1.21.6, 1.21.50.5 MB145 downloads585a84f50a29…Get
  • 2.5.025 May 20251.21.50.5 MB35 downloadsd5ed9b36cf0c…Get
  • 2.4.1019 Jan 20251.21.4, 1.21.3, 1.21.2, 1.21.1, 1.211.2 MB277 downloadsdef21744acaa…Get
  • 2.4.911 Jan 20251.21.4, 1.21.3, 1.21.2, 1.21.1, 1.211.2 MB39 downloads2559a43c3a24…Get
  • 2.4.816 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.211.2 MB69 downloads1dca31875d30…Get
  • 2.4.76 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.211.2 MB76 downloads88de1f7c5f39…Get
  • 2.4.622 Oct 20241.21.3, 1.21.2, 1.21.1, 1.210.8 MB105 downloadsb91526082308…Get
  • 2.4.510 Oct 20241.21.1, 1.210.5 MB48 downloads914d7879fb7f…Get
  • 2.4.422 Sept 20241.21.1, 1.210.5 MB51 downloadsa23ffce55e6a…Get
  • 2.4.317 Sept 20241.21.1, 1.210.5 MB33 downloads8099f0ae76c0…Get

Frequently asked

Does Cooler Caves work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Cooler Caves 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 Cooler Caves support?

Everything the author has declared, from 1.21 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Cooler Caves on the client or the server?

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

What licence is Cooler Caves under?

GPL-3.0-only, 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 Cooler Caves?

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 Cooler Caves 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 18 Oct 2026. 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? .