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    2,053,304 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 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 25 Oct 2026.269,472 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Fathomless Crimson

    Mod

    A horror mod with a focus on practical usage and providing equipment for general usage outside of the mod itself

    C74/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 1.20.1
    • ModpacksIn 190
    • ReleasesLatest 30 Jul

    Download

    FathomlessCrimson-1.2.51.jar

    Released 30 Jul 2026 · 12.2 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Nexus LayerBMinecraft 1.20.1 · Forge (release 1.1.4)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed
    • Widely used
    • Around for years

    Points lost

    • No source code link−7 points
    • Releases replaced within 3 days to fix a problem−6 points
    • No public issue tracker−3 points
    • Releases in only 7 of the last 24 months−1 point
    • Some modpacks removed it−1 point
    All 11 criteria

    • Maintenance

      1 point lost26 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.3 months ago (30 Jul 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.1.20.1 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.20.1. 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.Releases in 7 of the last 24 months 5 / 6

    • Stability

      7 points lost15 / 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.18 of the 138 modpacks with two or more versions removed it in a later one (13%) See the 18 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.8 of its 22 releases in 2 years needed a quick fix (36%) See the 8 releases1 / 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.680,818 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.12 months, 23 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total74 / 100

    52.5 of the 71 points that apply = 74 out of 100. The points above are rounded to whole numbers.

    Images

    • The Myriad Update
    • The Archbishop
    • The Nefarious Trio
    • War and Magery
    • The Machination
    • Bishop Tower
    • The Accursed
    • Campsite in Night
    • Campsite in Day
    • campfire

    In-game changes

    Does not change the game's code directly.

    Adds 79 blocks, 178 items, 51 entities, 11 structures, 56 recipes, 51 advancements, 26 loot tables and 74 sounds.

    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
    L_Ender's CataclysmBAlex's CavesCMowzie's MobsBIron's Spells 'n SpellbooksAYUNG's Better Nether FortressesA

    Details

    Creator
    BrikNex
    License
    All rights reserved
    Downloads
    681K
    Created
    24 Oct 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. 2 files in your config folder.

    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 · Both latest files checked, last on 18 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.
      2 latest files: the newest file for each Minecraft version and loader. Both 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. 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
    • 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.
    • Modrinth and CurseForgeA release with a different file on Modrinth and on CurseForge, whose code is not the same. Each file is checked on its own. Nothing is blocked.
      Minecraft 1.20.1 · Forge · release 1.2.2 · 16 Jul 2026: Modrinth FathomlessCrimson-1.2.2.jar, CurseForge FathomlessCrimson-1.2.2.jar. 7 classes changed, in com.briknex.fathomless: UndauntAnticipateCommand, UndauntBehindCommand, AccursedEntity, AccursedBehaviourProcedure, AnticipationProcedure, AnticipationSetProcedure, ArbiterStruckProcedure.
      code differs in 1 release

    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 · Both 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 both files, for recent Minecraft versions. 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, files, images and sounds 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.
      Not read yet.
    • 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
      1,081 images read
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Nothing found
      40 of 120 sounds read
    • 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
      1,245 code files read

    Compatibility

    See all 23 files
    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.Needed in your game and on the server, or you cannot join.
    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.
    Nexus LayerB
    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 1.20.1. Many recently updated mods still support 1.20.1.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    40200
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 0 modpacksMar 2025: 0 modpacksApr 2025: 0 modpacksMay 2025: 0 modpacksJun 2025: 0 modpacksJul 2025: 0 modpacksAug 2025: 0 modpacksSep 2025: 0 modpacksOct 2025: 1 modpackNov 2025: 6 modpacksDec 2025: 22 modpacksJan 2026: 14 modpacksFeb 2026: 11 modpacksMar 2026: 37 modpacksApr 2026: 29 modpacksMay 2026: 27 modpacksJun 2026: 26 modpacksJul 2026: 21 modpacksAug 2026: 19 modpacksSep 2026: 20 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 20250
    Apr 20250
    May 20250
    Jun 20250
    Jul 20250
    Aug 20250
    Sep 20250
    Oct 20251
    Nov 20256
    Dec 202522
    Jan 202614
    Feb 202611
    Mar 202637
    Apr 202629
    May 202627
    Jun 202626
    Jul 202621
    Aug 202619
    Sep 202620

    More modpacks put it in their new versions than a year ago: 24 a month now, 0 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    190 modpacks include Fathomless Crimson in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Cave Horror Project 18.2M downloadslast version with it 1 Oct 2026Linggango - [V6.5 IS OUT]1.3M downloadslast version with it 29 Oct 2025SUPERIOR - RPG513K downloadslast version with it 29 Dec 2025Beyond Tides64K downloadslast version with it 24 Jun 2026Cave horror optimized (cave horror project 1)31K downloadslast version with it 4 Aug 2026Horror Craft Reanimated26K downloadslast version with it 26 Dec 2025Ghostscape Legends14K downloadslast version with it 11 Apr 2026Monster Hunter7.9K downloadslast version with it 20 Jun 2026Whispers Of The Wings5.8K downloadslast version with it 16 Apr 2026The Oblivion RP4.9K downloadslast version with it 26 Apr 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Fathomless Crimson. Share: how many of the modpacks with Fathomless Crimson also have that mod.

    ProjectTypeShareGrade
    L_Ender's CataclysmBModin 61% of the modpacks with Fathomless CrimsonAlex's CavesCModin 54% of the modpacks with Fathomless CrimsonMowzie's MobsBModin 53% of the modpacks with Fathomless CrimsonIron's Spells 'n SpellbooksAModin 53% of the modpacks with Fathomless CrimsonYUNG's Better Nether FortressesAModin 51% of the modpacks with Fathomless CrimsonBorn in ChaosCModin 49% of the modpacks with Fathomless CrimsonAmendmentsAModin 47% of the modpacks with Fathomless CrimsonAttributeFixAModin 47% of the modpacks with Fathomless CrimsonBlueprintAModin 46% of the modpacks with Fathomless CrimsonSinytra ConnectorAModin 45% of the modpacks with Fathomless Crimson
    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
    1.20.1·Forge1.2.511.2.51 · FathomlessCrimson-1.2.51.jarSends: None foundRequires:Nexus LayerPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.2.21.2.2 · FathomlessCrimson-1.2.2.jarSends: None foundRequires:Nexus LayerPassedOur checks found nothing harmful in this file. Its code was read too.

    23 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.2.511.2.51 · FathomlessCrimson-1.2.51.jar·30 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 12.2 MB
    1.20.1·Forge1.2.41.2.4 · FathomlessCrimson-1.2.4.jar·22 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 12.2 MB
    1.20.1The latest file for its Minecraft version and loader·Forge1.2.21.2.2 · FathomlessCrimson-1.2.2.jar (main file)·16 Jul 2026PassedOur checks found nothing harmful in this file. The Modrinth and CurseForge files do not contain the same code. See Security.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 12.2 MB
    1.20.1·Forge1.2.11.2.1 · FathomlessCrimson-1.2.1.jar·13 Jul 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 12.2 MB
    1.20.1·Forge1.2.01.2.0 · FathomlessCrimson-1.2.0.jar·6 Jul 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 12.2 MB
    1.20.1·Forge1.1.91.1.9 · FathomlessCrimson-1.1.9.jar·25 Mar 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.81.1.8 · FathomlessCrimson-1.1.8.jar·21 Feb 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.71.1.7 · FathomlessCrimson-1.1.7coldfix.jar·19 Feb 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.71.1.7 · FathomlessCrimson-1.1.7.jar·18 Feb 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.61.1.6 · FathomlessCrimson-1.1.6.jar·10 Feb 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 9.9 MB
    1.20.1·Forge1.1.41.1.4 · FathomlessCrimson-1.1.4.jar·31 Jan 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.3-ish1.1.3-ish · FathomlessCrimson-1.1.3bugfix.jar·28 Dec 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.21.1.2 · FathomlessCrimson-1.1.2.jar·15 Dec 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.0 MB
    1.20.1·Forge1.1.11.1.1 · FathomlessCrimson-1.1.1.jar·7 Dec 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 10.1 MB
    1.20.1·Forge1.1.01.1.0 · FathomlessCrimson-1.1.0.jarBeta·5 Dec 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 10.1 MB
    1.20.1·Forge1.0.81.0.8 · FathomlessCrimson-1.0.8.jarBeta·2 Nov 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 8.0 MB
    1.20.1·Forge1.0.81.0.8 · FathomlessCrimson-1.0.8.jarBeta·2 Nov 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 8.0 MB
    1.20.1·Forge1.0.7HotFix1.0.7HotFix · FathomlessCrimson-1.0.7HotFix.jarBeta·31 Oct 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 7.9 MB
    1.20.1·Forge1.0.51.0.5 · FathomlessCrimson-1.0.5.jarBeta·31 Oct 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 7.8 MB
    1.20.1·Forge1.0.31.0.3 · FathomlessCrimson-1.0.3.jarBeta·29 Oct 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Beta · 7.8 MB
    1 to 20 of 2312

    Quick fixes

    In the last 2 years, 8 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 6 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.8

    • Somewhat Urgent Update 1.2.216 Jul 2026…and Old Growth Pine Taiga) Bug Fixes - Lethality and Armor upgrade cores can now…
    • Minor Update 1.1.821 Feb 2026…to be replaced Bug Fixes - Fixed Upgrade Core GUI still saying "Input Crimson…
    • Fathomless Crimson - Release 1.1.17 Dec 2025…Fixed Soul Edge's Tooltip…
    • Fathomless Crimson - Beta Release 1.0.82 Nov 2025…had no idea why it was here, so hopefully this fix sticks and the issue never appears ever again. That…
    • Fathomless Crimson Major Bug Fix - Beta Release 1.0.531 Oct 2025…Bug Fixes…
    • Fathomless Crimson Hotfix - Beta Release 1.0.329 Oct 2025…Bug Fixes…
    • Fathomless Crimson - Beta Release 1.0.227 Oct 2025…Bug Fixes…
    • Fathomless Crimson - Beta Release 1.0.125 Oct 2025…Bug Fixes…