Skip to content
BrowseScan your modsScan

    No project matches this search.

    2,055,424 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 2026.269,392 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Immortuos Calyx

    Mod

    A creepy parasite infects you and changes what your body can do.

    C65/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 50
    • ReleasesLatest 10 Jan

    Download

    immortuoscalyx-fabric-1.21.1-2.2.1.jar

    Released 10 Jan 2026 · 568.5 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 1.21.1 · Fabric (release 0.116.17)
    • TrinketsCMinecraft 1.21.1 · Fabric (release 3.10.0)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed

    Points lost

    • No release in 9 months−15 points
    • Many modpacks removed it−4 points
    • No public issue tracker−3 points
    • Releases in only 5 of the last 24 months−2 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      11 points lost16 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.9 months ago (10 Jan 2026) 3 / 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 Fabric and NeoForge, 1.19.2 on Forge. 53% of the 718 popular Fabric 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.Releases in 5 of the last 24 months 4 / 6

    • Stability

      4 points lost18 / 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.10 of the 43 modpacks with two or more versions removed it in a later one (23%) See the 10 modpacks6 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.1 of its 9 releases in 2 years needed a quick fix (11%) 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · jedijoe93/ImmortuosCalyx 7 / 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

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.154,279 3 / 4

    • Track record

      6 points lost2 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.6.0 years, 91 releases 2 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 4 latest files for recent Minecraft versions. See Security
    Total65 / 100

    46.2 of the 71 points that apply = 65 out of 100. The points above are rounded to whole numbers.

    Images

    • Rusk Co Research Facility
    • Infected Player
    • Genetic Researcher

    About

    Immortuos Calyx is a survival-horror mod centered on a parasite that gradually infects players and other entities, taking control of hosts and causing changes that can be harmful or, in some circumstances, beneficial. Infection can come from being hit by uncommon infected creatures found on land and in the sea, or from consuming their drops; if infection takes over or kills a sufficiently infected player, an infected human may appear wearing that player's name and skin. The infection affects movement, strength and damage resistance, with effects shaped by temperature: warm environments bring particular drawbacks, while cold environments can be advantageous, and advanced infection can prevent drowning. The mod also adds genetic research: a Rusk Co. Research Facility in villages houses a Gene Encoder and serves as a workplace for the Genetic Researcher, who supplies materials for research and infection care. Players can use a Gene Ripper to harvest unidentified genes from entities, then identify, refine or combine gene vials at the Encoder; vials may have varying potency or contamination, and removing implanted genes causes organ damage. Gene Splicers provide slots for implanting genes that grant traits from other creatures, including zombie-like armor, ocelot-like speed, turtle-like protection in water, and frog-like higher jumps while crouching. Contaminations can add serious drawbacks, such as burning in sunlight, lethal reactions to large amounts of water, reduced health, increased damage taken, or slower movement after a fall. Some genes can also help manage infection, including the Immortuos Gene, which can sometimes halt its progression; the system draws inspiration from Barotrauma's genetic implants.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 5 areas: Mobs and their behaviorChanges 3 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., PlayerChanges 2 game code files in this area: your character: movement, abilities, hunger and controls., Networking and multiplayerChanges 1 game code file in this area: connections, the server list and what is sent between your game and a server., Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    Libraries packed inside it change 6 more game code files: Cardinal Components API (entities) and Cardinal Components API (items).

    Adds 2 blocks, 13 items, 2 mobs, 9 recipes, 2 loot tables and 7 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
    Enhanced CelestialsBSerene SeasonsAGuard VillagersAMacaw's TrapdoorsAThe Graveyard (FORGE/NEOFORGE)A

    Details

    Creator
    MaritheVillain
    License
    MIT License
    Downloads
    154K
    Created
    8 Oct 2020
    Official pages
    Modrinth , CurseForge
    Links
    Source code , 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 · All 19 latest files checked, last on 16 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.
      19 latest files: the newest file for each Minecraft version and loader. The answer above is about the 4 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 4 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 4 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 so far that AI was used to make it

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

    We have not read its code history yet.

    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 · 6 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.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      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
      30 of 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
      50 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
      12 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
      163 code files read

    Compatibility

    See all 91 files
    Fabric
    NeoForge
    Forge
    1.161.191.2126.1

    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.
    Fabric APIon FabricATrinketson FabricCCurios APIon NeoForgeA
    OptionalProjects it can work with but does not need. The author lists them.
    IncapacitatedCPatchouliA
    IncludesProjects packed inside its files.
    Cardinal Components APIon FabricA
    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

    50 modpacks include Immortuos Calyx in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Adventure Life - Legacy75K downloadslast version with it 24 May 2024SpookyJam 2021 - Forge62K downloadslast version with it 26 Oct 2021Cataclysm Zombie Apocalypse33K downloadslast version with it 1 May 2024MahGroogly’s Terror26K downloadslast version with it 27 Jul 2023SpookyJam 202421K downloadslast version with it 27 Nov 2024PokecraftZ (A Pokémon Zombie Survival RPG)14K downloadslast version with it 24 Sep 2021Delta's Mod Pack 195K downloadslast version with it 7 Feb 2023OUR-HEALTH4.5K downloadslast version with it 15 Feb 2022AOF : Skylore4.3K downloadslast version with it 29 Jan 2023Overlord3.8K downloadslast version with it 26 Dec 2021
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Enhanced CelestialsBModin 50% of the modpacks with Immortuos CalyxSerene SeasonsAModin 50% of the modpacks with Immortuos CalyxGuard VillagersAModin 46% of the modpacks with Immortuos CalyxMacaw's TrapdoorsAModin 44% of the modpacks with Immortuos CalyxThe Graveyard (FORGE/NEOFORGE)AModin 42% of the modpacks with Immortuos CalyxDuskAModin 40% of the modpacks with Immortuos CalyxZombie AwarenessCModin 40% of the modpacks with Immortuos CalyxMacaw's RoofsAModin 40% of the modpacks with Immortuos CalyxAttributeFixAModin 40% of the modpacks with Immortuos CalyxEyes in the DarknessAModin 36% of the modpacks with Immortuos Calyx
    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
    1.21.1·Fabric2.2.12.2.1 · immortuoscalyx-fabric-1.21.1-2.2.1.jarSends: None foundRequires:Fabric API, TrinketsPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric2.2.02.2.0 · immortuoscalyx-fabric-1.21.1-2.2.0.jarSends: None foundRequires:Fabric API, TrinketsPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.2.12.2.1 · immortuoscalyx-neoforge-1.21.1-2.2.1.jarSends: None foundRequires:Curios APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.2.02.2.0 · immortuoscalyx-neoforge-1.21.1-2.2.0.jarSends: None foundRequires:Curios APIPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.19.2·Fabric1.7.2.21.7.2.2 · Immortuos Calyx-fabric-1.19.2-1.7.2.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2·Forge1.7.2.41.7.2.4 · Immortuos+Calyx-forge-1.19.2-1.7.2.4.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19·Fabric1.7.21.7.2 · Immortuos Calyx-fabric-1.19-1.7.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19·Forge1.7.2.11.7.2.1 · Immortuos Calyx-forge-1.19-1.7.2.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.2·Fabric1.7.11.7.1 · Immortuos Calyx-fabric-1.18.2-1.7.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.2·Forge1.7.11.7.1 · Immortuos Calyx-forge-1.18.2-1.7.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1912

    91 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·Fabric2.2.12.2.1 · immortuoscalyx-fabric-1.21.1-2.2.1.jar (main file)·10 Jan 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 568.5 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.2.12.2.1 · immortuoscalyx-neoforge-1.21.1-2.2.1.jar (main file)·10 Jan 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 457.0 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric2.2.02.2.0 · immortuoscalyx-fabric-1.21.1-2.2.0.jar (main file)·7 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 567.8 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.2.02.2.0 · immortuoscalyx-neoforge-1.21.1-2.2.0.jar (main file)·7 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 456.3 KB
    1.21.1·NeoForge2.1.02.1.0 · immortuoscalyx-neoforge-1.21.1-2.1.0.jar (main file)·25 May 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 447.6 KB
    1.21.1·Fabric2.1.02.1.0 · immortuoscalyx-fabric-1.21.1-2.1.0.jar (main file)·25 May 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 560.8 KB
    1.21.1·Fabric2.0.32.0.3 · immortuoscalyx-fabric-1.21.1-2.0.3.jar (main file)·20 May 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 548.7 KB
    1.21.1·NeoForge2.0.32.0.3 · immortuoscalyx-neoforge-1.21.1-2.0.3.jar (main file)·20 May 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 435.3 KB
    1.21.1·NeoForge2.0.2.12.0.2.1 · immortuoscalyx-neoforge-1.21.1-2.0.2.1.jar (main file)·24 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 434.8 KB
    1.21.1·NeoForge2.0.22.0.2 · immortuoscalyx-neoforge-1.21.1-2.0.2.jar (main file)·1 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 434.8 KB
    1.21.1·Fabric2.0.22.0.2 · immortuoscalyx-fabric-1.21.1-2.0.2.jar (main file)·1 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 548.2 KB
    1.21.1·NeoForge2.0.1.12.0.1.1 · immortuoscalyx-neoforge-1.21.1-2.0.1.1.jar (main file)·23 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 434.8 KB
    1.21.1·Fabric2.0.12.0.1 · immortuoscalyx-fabric-1.21.1-2.0.1.jar (main file)·22 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 537.2 KB
    1.21.1·NeoForge2.0.12.0.1 · immortuoscalyx-neoforge-1.21.1-2.0.1.jar (main file)·22 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 423.7 KB
    1.21.1·NeoForge2.0.02.0.0 · immortuoscalyx-neoforge-1.21.1-2.0.0.jar (main file)·2 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 423.7 KB
    1.21.1·Fabric2.0.02.0.0 · immortuoscalyx-fabric-1.21.1-2.0.0.jar (main file)·2 Mar 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 537.2 KB
    1.21.1·NeoForge2.0.0-Alpha12.0.0-Alpha1 · immortuoscalyx-neoforge-1.21.1-2.0.0-Alpha1.jar (first file)Alpha·27 Sep 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 242.7 KB
    1.21.1·Fabric2.0.0-Alpha12.0.0-Alpha1 · immortuoscalyx-fabric-1.21.1-2.0.0-Alpha1.jar (first file)Alpha·26 Sep 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 346.4 KB
    1.19.2The latest file for its Minecraft version and loader·Forge1.7.2.41.7.2.4 · Immortuos+Calyx-forge-1.19.2-1.7.2.4.jar (first file)·16 Jan 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 352.0 KB
    1.19.2·Forge1.7.2.31.7.2.3 · Immortuos Calyx-forge-1.19.2-1.7.2.3.jar·13 Jan 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 350.9 KB
    1 to 20 of 9112345

    Quick fixes

    In the last 2 years, 1 release needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.1

    • immortuoscalyx-neoforge-1.21.1-2.0.1.1.jar23 Mar 2025Actually fixes the spawning issue with the deep dark for neoforge…