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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.

    Geysers Of Yellowstone

    Mod

    Adds geysers to the Yellowstone biome.

    C76/ 100
    • OverviewC
    • SecurityNot checked yet
    • PrivacyNot read yet
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 16
    • ReleasesLatest 27 Sep

    Download

    geysers-of-yellowstone-1.21.1-fabric-beta-1.jar Beta

    Released 27 Sep 2026 · 11.2 KB

    Not checked: its author does not let other sites download this file from CurseForge, so we cannot check it.

    Open on CurseForge

    Required to run

    • Vanilla BackportAMinecraft 1.21.1 · Fabric (release 1.2.1)
    • TerralithAMinecraft 1.21.1 · Fabric (release 2.6.2)
    • PlatformNeeded by Vanilla BackportAMinecraft 1.21.1 · Fabric (release 1.4.1)
    • LithostitchedNeeded by TerralithAMinecraft 1.21.1 · Fabric (release 1.8.1-21.1)
    • Fabric APINeeded by PlatformAMinecraft 1.21.1 · Fabric (release 0.116.17)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Regular releases for Minecraft 1.21.1, a version many recently updated mods still support
    • Stable releases

    Points lost

    • No source code link−7 points
    • First release only 4 months ago−5 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      Full points21 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.4 weeks ago (27 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.1.21.1 on NeoForge and Fabric, 1.20.1 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.21.1. 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.Does not apply. The project is under 6 months old.

    • Stability

      Full points15 / 15
      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.2 of the 14 modpacks with two or more versions removed it in a later one (14%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.
      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

      7 points lost0 / 7
      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.Does not apply. CurseForge links are not in our data.

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.123,181 3 / 4

    • Track record

      5 points lost3 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4 months, 3 releases 3 / 8

    • Security

      Not checked
      File checksThis check adds no points. It can only take points away.Files for recent Minecraft versions not checked yet. B at most until they are. See Security
    Total76 / 100

    41.8 of the 55 points that apply = 76 out of 100. The points above are rounded to whole numbers.

    Images

    • imagen_2026-06-16_125146122.png

    About

    Geysers Of Yellowstone adds natural geyser features to the Yellowstone biome, complementing its landscape with the sulfur vents the biome would otherwise lack. Potent sulfur blocks can generate above magma blocks to form geysers, while sulfur vents appear underwater in shallow areas; the project requires Terralith and Vanilla Backport.

    Written from CurseForge . How we write it

    Details

    Creator
    Vykket
    License
    Not known
    Downloads
    123K
    Created
    16 Jun 2026
    Official page
    CurseForge

    Security

    Not checked yet

    We have not checked its files for recent Minecraft versions yet.

    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 · Not checked yet
    • 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.
      3 latest files: the newest file for each Minecraft version and loader. All 3 are 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. 3 of them are not checked yet. See each file in Releases

    Privacy

    We have not read its code yet

    What it sends is not known yet.

    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 · Code not read yet
    • 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.
      None yet. See each file in Releases

    AI

    No sign so far that AI was used to make it

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

    We have not read its files, images and sounds yet.

    AI in the game: not checked yet

    We have not read its code for AI yet.

    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 · 1 place 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.
      Not on Modrinth.
    • 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
      6 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Not read yet
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Not read yet
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Not read yet
    • 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.
      Not checked for AI yet.

    Compatibility

    See all 3 files
    Fabric
    NeoForge
    Forge
    1.201.2126.126.3

    Point at or tap a version to see its loaders.

    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.
    Vanilla BackportATerralithA
    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 1.21.1. Many recently updated mods still support 1.21.1.

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Geysers Of Yellowstone in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    MC Eternal 21.9M downloadslast version with it 16 Sep 2026Mystic's Monstrosity - Avaricious Edition3.1K downloadslast version with it 1 Oct 2026Beyond Depth OVERHAUL (The Rift SMP)1.5K downloadslast version with it 4 Aug 2026Terraclysm1.3K downloadslast version with it 21 Oct 2026The Guild - Create+ SMP Refactored904 downloadslast version with it 30 Aug 2026Astrofeur671 downloadslast version with it 10 Sep 2026Mystic's Monstrosity - Immersive Edition637 downloadslast version with it 4 Oct 2026Cre8 Xpl0r3428 downloadslast version with it 14 Sep 2026Ancient-RPG198 downloadslast version with it 16 Oct 2026Magical Stream ReCreated168 downloadslast version with it 20 Sep 2026
    1 to 10 of 1612

    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
    1.21.1·Fabric11 · geysers-of-yellowstone-1.21.1-fabric-beta-1.jarSends: Not read yetRequires:Vanilla Backport, TerralithVanilla Backport, TerralithNot checkedWe have not checked this file yet.
    1.21.1·NeoForgeGeysers-Of-Yellowstone-1.21.1Geysers-Of-Yellowstone-1.21.1 · Geysers-Of-Yellowstone-1.21.1.jarSends: Not read yetRequires:Terralith, Vanilla BackportTerralith, Vanilla BackportNot checkedWe have not checked this file yet.
    1.20.1·ForgeGeysers-Of-Yellowstone-1.20.1Geysers-Of-Yellowstone-1.20.1 · Geysers-Of-Yellowstone-1.20.1.jarSends: Not read yetRequires:Terralith, Vanilla BackportTerralith, Vanilla BackportNot checkedWe have not checked this file yet.

    3 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·Fabric11 · geysers-of-yellowstone-1.21.1-fabric-beta-1.jarBeta·27 Sep 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1The latest file for its Minecraft version and loader·ForgeGeysers-Of-Yellowstone-1.20.1Geysers-Of-Yellowstone-1.20.1 · Geysers-Of-Yellowstone-1.20.1.jar·27 Jun 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.21.1The latest file for its Minecraft version and loader·NeoForgeGeysers-Of-Yellowstone-1.21.1Geysers-Of-Yellowstone-1.21.1 · Geysers-Of-Yellowstone-1.21.1.jar·16 Jun 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.