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Ember's Underground RoomsMinecraft mod for 1.21.10

New underground dungeons with varied rooms, treasure and enemies! Now with achievements!

server onlynewest supported 1.21.10AdventureGame MechanicsDecorationWorldgen
Latest version
2.2.1-1.21
Minecraft
1.20 to 1.21.10
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
310.8k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Ember's Underground Rooms servers

One click and Ember's Underground Rooms is installed with the right loader, on hardware built for it.

  • 1.21.10
  • NeoForge
  • Forge
  • Fabric
  • 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 Ember's Underground Rooms declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.10NeoForge, Forge, Fabric21+declared7 Oct 2025
1.21.9Fabric, NeoForge, Forge21+declared30 Sept 2025
1.21.8Forge, NeoForge, Fabric21+declared17 Jul 2025
1.21.7Fabric, NeoForge, Forge21+declared30 Jun 2025
1.21.6NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5Fabric, NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, Fabric, NeoForge21+declared22 Oct 2024
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.20.6Fabric, NeoForge, Forge21+declared29 Apr 2024
1.20.5Forge, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Forge, NeoForge, Fabric17+declared4 Dec 2023
1.20.2Forge, NeoForge, Fabric17+declared20 Sept 2023
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.20Forge, NeoForge, Fabric17+declared2 Jun 2023

Download

From Ember's Underground Rooms’s own host. Nothing is re-hosted here.

All 28 releases
2.2.1-1.21release4 Jul 2026

underground_rooms-2.2.1-1.21.jar · 0.3 MB · for 1.21.1, 1.21.2, 1.21.3, 1.21.4

Download latest
38e7a8f037e1…
Older versions24
  • 2.2.1-neoforge4 Jul 20261.21.10.3 MB737dc78221a8…Get
  • fabric-2.2.14 Jul 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBea321187d532…Get
  • 2.2.14 Jul 20261.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.60.3 MB84b14969500b…Get
  • 2.2-1.20.131 May 20261.20.10.3 MB8cd2cee00673…Get
  • 2.231 May 20261.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6 +1 more0.3 MB4e24043a8e4e…Get
  • 2.2-1.2131 May 20261.21.1, 1.21.2, 1.21.3, 1.21.40.3 MBba0a750d9475…Get
  • fabric-2.231 May 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBe83bef0fb154…Get
  • fabric-2.1.910 Apr 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBa69ec9553f97…Get
  • 2.1.9-1.2110 Apr 20261.21.1, 1.21.2, 1.21.3, 1.21.40.3 MBe4d9b075e05f…Get
  • 2.1.9-1.20.110 Apr 20261.20.10.3 MBccc77d6e77eb…Get
  • 2.1.910 Apr 20261.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.60.3 MB7b72bb3a1112…Get
  • 2.1.8-1.2123 Mar 20261.21.1, 1.21.2, 1.21.3, 1.21.40.3 MB7130ce43a56d…Get
  • fabric-2.1.823 Mar 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBd713ca435599…Get
  • 2.1.823 Mar 20261.20, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBed0693aa2ab4…Get
  • 2.1.8-1.20.123 Mar 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBbdaf8ba9a138…Get
  • 2.1.76 Feb 20261.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MB3712bd142016…Get
  • fabric-2.1.529 Dec 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.2 MBa1a0f6f0b0e7…Get
  • 2.1.5-1.2129 Dec 20251.21.1, 1.21.2, 1.21.3, 1.21.40.3 MB7ec45332ce6d…Get
  • 2.1.529 Dec 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.3 MBef87eaf3754b…Get
  • 2.1.4-1.2121 Dec 20251.21.1, 1.21.2, 1.21.3, 1.21.40.2 MBa524a3c1a744…Get
  • 2.1.421 Dec 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.2 MB0baf0cbf4eb2…Get
  • fabric-2.1.421 Dec 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.2 MBb3120e79a5da…Get
  • 2.1.3-1.2119 Dec 20251.21.1, 1.21.2, 1.21.3, 1.21.40.2 MB0ba71602fdcf…Get
  • fabric-2.1.319 Dec 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.2 MB920e3d7a66ef…Get

Frequently asked

Does Ember's Underground Rooms work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Ember's Underground Rooms 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 Ember's Underground Rooms support?

Everything the author has declared, from 1.20 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Ember's Underground Rooms on the client or the server?

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

Which platform or loader does Ember's Underground Rooms support?

NeoForge, Forge, Fabric. 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 Ember's Underground Rooms?

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 Ember's Underground Rooms 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 Ember's Underground Rooms?

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 Ember's Underground Rooms 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.

Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Last checked 23 d 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? .