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    2,046,932 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 24 Oct 2026.269,480 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Ember's Underground Rooms

    Mod

    New underground dungeons with varied rooms, treasure and enemies.

    B86/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.1.2
    • ModpacksIn 457
    • ReleasesLatest 19 Sep

    Download

    underground_rooms-2.3.2-26.1.2.jar

    Released 19 Sep 2026 · 348.6 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Regular releases for Minecraft 26.1.2, a version many recently updated mods still support
    • Stable releases
    • Widely used
    • Around for years

    Points lost

    • No source code link−7 points
    • No public issue tracker−3 points
    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 weeks ago (20 Sep 2026) 12 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.1.2 on NeoForge, 1.21.10 on Forge, 1.20.6 on Fabric. 15% or more of the popular mods updated in the last 6 months also have files for 26.1.2. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 18 of the last 24 months 6 / 6

    • Stability

      Full points22 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.31 of the 353 modpacks with two or more versions removed it in a later one (9%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.No quick fix in 2 years 7 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      10 points lost0 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.No link on the project page 0 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.5,130,977 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.20 months, 126 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 6 latest files for recent Minecraft versions. See Security
    Total86 / 100

    61 of the 71 points that apply = 86 out of 100.

    Images

    • Throne Room
    • The Catacombs
    • Mining Storage Room.png
    • The Council Hall
    • Torture chamber
    • Wine cellar
    • Desert crypt
    • Library
    • Miniboss Room
    • The Undead Dungeon
    • The Jungle Dungeon
    • A Witch's Laboratory
    • The Undead Dungeon
    • The Upper Library
    • The Library Corridors
    • The Witches of the Library
    • Join our discord for help!

    About

    Ember's Underground Rooms adds standalone underground rooms and multi-room dungeons that reward exploration with loot while exposing players to enemies, traps, and occasional mini-bosses. Its named dungeons include the Soulfire Jail, the witch-studied Library, a former magical laboratory in the Jungle Dungeon, the undead-filled Undead Dungeon, and the Ancient Dungeon, whose traps and dangerous enemies include a mini-boss. The standalone rooms range from an Alchemy Laboratory with a witch spawner and brewing stands, an Enchanting Room and a Blacksmith room, to a monster-guarded Throne Room and libraries hiding threats among magical bookshelves. Other finds include a rare ore-and-furnace Mining Storage Room in mountains and taigas, a gold-, diamond- and iron-filled Treasure Room, a trapped Desert Crypt, a jungle Hidden Temple, and mysterious End Room and Catacombs.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds 20 structures, 11 advancements and 1 loot table.

    Counted from the names and data files in the mod, so the list may not be complete.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    AmendmentsAYUNG's Better Nether FortressesAYUNG's Better Ocean MonumentsABlueprintAYUNG's Better Jungle TemplesA

    Details

    Creator
    ember_slvtr
    License
    All rights reserved
    Downloads
    5.1M
    Created
    10 Feb 2025
    Official pages
    Modrinth , CurseForge
    Links
    Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. Only in its files for Forge 1.21.1 to 1.21.10.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 10 latest files checked, last on 15 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      10 latest files: the newest file for each Minecraft version and loader. The answer above is about the 6 for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · All 6 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 6 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign that AI was used to make it

    We looked for AI tools in its texts, files and images and found none.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 5 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      40 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      2 code files read

    Compatibility

    See all 126 files
    Fabric
    NeoForge
    Forge
    1.201.2126.126.3

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Install it on the server. Players join without installing it. It also works in singleplayer.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.Nothing
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.It has no file for Minecraft versions newer than 26.1.2. Many recently updated mods still support 26.1.2.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2001000
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 0 modpacksMar 2025: 3 modpacksApr 2025: 6 modpacksMay 2025: 123 modpacksJun 2025: 111 modpacksJul 2025: 62 modpacksAug 2025: 45 modpacksSep 2025: 49 modpacksOct 2025: 66 modpacksNov 2025: 55 modpacksDec 2025: 62 modpacksJan 2026: 50 modpacksFeb 2026: 54 modpacksMar 2026: 51 modpacksApr 2026: 45 modpacksMay 2026: 43 modpacksJun 2026: 48 modpacksJul 2026: 59 modpacksAug 2026: 58 modpacksSep 2026: 62 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20240
    Nov 20240
    Dec 20240
    Jan 20250
    Feb 20250
    Mar 20253
    Apr 20256
    May 2025123
    Jun 2025111
    Jul 202562
    Aug 202545
    Sep 202549
    Oct 202566
    Nov 202555
    Dec 202562
    Jan 202650
    Feb 202654
    Mar 202651
    Apr 202645
    May 202643
    Jun 202648
    Jul 202659
    Aug 202658
    Sep 202662

    457 modpacks include Ember's Underground Rooms in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Homestead3.6M downloadslast version with it 23 Jul 2025Linggango - [V6.5 IS OUT]1.3M downloadslast version with it 11 Jul 2026Prehistoric World - Dinosaurs, Adventure & Quests | NEW PREHISTORY UPDATE!1.1M downloadslast version with it 22 Oct 2026Otherworld [Dungeons & Dragons]980K downloadslast version with it 11 May 2026Prehistoric World480K downloadslast version with it 19 Oct 2026New Game 2372K downloadslast version with it 19 Oct 2026The Last War - Guns And Adventure312K downloadslast version with it 22 Oct 2026Ancient Kingdoms 3263K downloadslast version with it 30 Sep 2026New Age174K downloadslast version with it 23 Oct 2026Reimagined151K downloadslast version with it 6 Aug 2025
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Ember's Underground Rooms. Share: how many of the modpacks with Ember's Underground Rooms also have that mod.

    ProjectTypeShareGrade
    AmendmentsAModin 68% of the modpacks with Ember's Underground RoomsYUNG's Better Nether FortressesAModin 61% of the modpacks with Ember's Underground RoomsYUNG's Better Ocean MonumentsAModin 57% of the modpacks with Ember's Underground RoomsBlueprintAModin 56% of the modpacks with Ember's Underground RoomsYUNG's Better Jungle TemplesAModin 56% of the modpacks with Ember's Underground RoomsAttributeFixAModin 56% of the modpacks with Ember's Underground RoomsYUNG's Better End IslandAModin 56% of the modpacks with Ember's Underground RoomsL_Ender's CataclysmBModin 55% of the modpacks with Ember's Underground RoomsStructure EssentialsAModin 52% of the modpacks with Ember's Underground RoomsYUNG's Better Desert TemplesAModin 51% of the modpacks with Ember's Underground Rooms
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    26.1.2·NeoForge2.3.22.3.2 · underground_rooms-2.3.2-26.1.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5 to 1.21.10·Forge2.0.7-1.212.0.7-1.21 · underground_rooms-2.0.7-1.21.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1 to 1.21.4·Forge2.3.2-1.212.3.2-1.21 · underground_rooms-2.3.2-1.21.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.3.22.3.2 · underground_rooms-2.3.2-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1 to 1.20.6·Fabric2.3.22.3.2 · underground_rooms-2.3.2-fabric.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge2.3.22.3.2 · underground_rooms-2.3.2-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.21·Forge2.2-1.212.2-1.21 · underground_rooms-2.2-1.21.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.2 to 1.20.6·Forge2.3.22.3.2 · underground_rooms-2.3.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20·Fabric2.1.82.1.8 · underground_rooms-fabric-2.1.8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20·Forge2.1.82.1.8 · underground_rooms-2.1.8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    126 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.1.2The latest file for its Minecraft version and loader·NeoForge2.3.22.3.2 · underground_rooms-2.3.2-26.1.2.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 348.6 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.3.22.3.2 · underground_rooms-2.3.2-neoforge.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 348.3 KB
    1.21.1 to 1.21.41.21.1 to 1.21.4The latest file for its Minecraft version and loader·Forge2.3.2-1.212.3.2-1.21 · underground_rooms-2.3.2-1.21.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 350.2 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6The latest file for its Minecraft version and loader·Fabric2.3.22.3.2 · underground_rooms-2.3.2-fabric.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 346.6 KB
    1.20.2 to 1.20.61.20.2 to 1.20.6The latest file for its Minecraft version and loader·Forge2.3.22.3.2 · underground_rooms-2.3.2.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 350.5 KB
    1.20.1The latest file for its Minecraft version and loader·Forge2.3.22.3.2 · underground_rooms-2.3.2-1.20.1.jar (main file)·19 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 366.8 KB
    1.20.1·Forge2.3.12.3.1 · underground_rooms-2.3.1-1.20.1.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 357.7 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6·Fabric2.3.12.3.1 · underground_rooms-fabric-2.3.1-fabric.jar·12 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 337.5 KB
    1.20.2 to 1.20.61.20.2 to 1.20.6·Forge2.3.12.3.1 · underground_rooms-2.3.1.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 341.4 KB
    1.21.1 to 1.21.41.21.1 to 1.21.4·Forge2.3.1-1.212.3.1-1.21 · underground_rooms-2.3.1-1.21.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 341.1 KB
    1.21.1·NeoForge2.3.12.3.1 · underground_rooms-2.3.1-neoforge.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 339.2 KB
    26.1.2·NeoForge2.3.12.3.1 · underground_rooms-2.3.1-26.1.2.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 339.5 KB
    26.1.2·NeoForge2.3.02.3.0 · underground_rooms-2.3.0-26.1.2.jar·31 Jul 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 333.3 KB
    1.21.1 to 1.21.41.21.1 to 1.21.4·Forge2.3.0-1.212.3.0-1.21 · underground_rooms-2.3.0-1.21.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 369.1 KB
    1.21.1·NeoForge2.3.02.3.0 · underground_rooms-2.3.0-neoforge.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 367.2 KB
    1.20.1 to 1.20.61.20.1 to 1.20.6·Fabric2.3.02.3.0 · underground_rooms-fabric-2.3.0-fabric.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 365.5 KB
    1.20.2 to 1.20.61.20.2 to 1.20.6·Forge2.3.02.3.0 · underground_rooms-2.3.0.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 369.4 KB
    1.20.1·Forge2.3.02.3.0 · underground_rooms-2.3.0-1.20.1.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 385.6 KB
    1.21.1 to 1.21.41.21.1 to 1.21.4·Forge2.2.1-1.212.2.1-1.21 · underground_rooms-2.2.1-1.21.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 340.0 KB
    1.21.1·NeoForge2.2.12.2.1 · underground_rooms-2.2.1-neoforge.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 338.1 KB
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