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    2,074,602 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 27 Oct 2026.652,621 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 27 Oct 2026.270,347 projects gradedProjects with a letter from A to F. Counted on 27 Oct 2026.

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

    Contagion - A Zombie Infection / Infectious Mod

    Mod

    Zombie bites can infect you with a deadly illness.

    Download

    Files come from Modrinth and CurseForge servers.

    Contagion-2.1.2-Fabric-mc26.3.jar

    Released 18 Sep 2026 · 1.1 MB

    Passed: our checks found nothing harmful in this file.

    Download
    A92/ 100
    Security
    Passed
    Privacy
    None found
    Runs on
    Client and server
    Loaders
    Fabric, Forge, NeoForge
    Minecraft versions
    Up to 26.3
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 119
    • ReleasesLatest 24 Sep
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for the newest Minecraft versions
    • Public source code and issue tracker
    • Around for years

    Points lost

    • Many modpacks removed it−5 points
    • Under 5 million downloads−1 point
    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 (24 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.26.3 (latest) on NeoForge and Fabric, 1.20.1 on Forge 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 13 of the last 24 months 6 / 6

    • Stability

      5 points lost17 / 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 75 modpacks with two or more versions removed it in a later one (24%) See the 18 modpacks5 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.4 of its 33 releases in 2 years needed a quick fix (12%) 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

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · MC-Mods-Pete/Contagion 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · MC-Mods-Pete/Contagion 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.371,643 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.2.4 years, 96 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 20 latest files for recent Minecraft versions. See Security
    Total92 / 100

    65.1 of the 71 points that apply = 92 out of 100. The points above are rounded to whole numbers.

    About

    Contagion adds a zombie-infection survival mechanic: a zombie hit has an 80% default chance to infect you, armor can reduce that chance, and the infection becomes fatal if its timer runs out. Infection can progress to an optional, configurable infectious-carrier phase, in which infected entities spread it through the air to nearby players and villagers. The mod adds a crafting route toward treatment: zombies may drop Contagious Flesh, heating it makes it non-contagious, and combining the heated flesh with gold ingots creates Gold Streaked Zombie Flesh, which resets the infection timer when eaten but does not cure the infection. You can brew a Cure Potion by combining Gold Streaked Zombie Flesh with an awkward potion, then extend its duration with redstone; golden and enchanted golden apples can also be configured to cure infection and infectious effects. Optional behaviors include infected players infecting one another, infected villagers becoming Zombie Villagers when they die, vanilla zombies spawning as airborne spreaders, and Iron Golems attacking infected players.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 3 areas: Mobs and their behaviorChanges 5 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls. and Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting..

    Adds:

    • 4 itemsContagious Zombie Flesh, Cure, Gold Streaked Zombie Flesh and Heat Treated Zombie Flesh. Items with their own name, not counting blocks, checked against the item files.
    • 6 recipes
    • 1 sound

    Counted from the files of the mod. Content made only in its code is not counted.

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

    Details

    Creator
    PeteMC
    License
    MIT License
    Downloads
    372K
    Created
    22 May 2024
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found

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

    What it can do on your computer

    Connects to the internet
    It has code that can go online, for example to check for updates, load skins or send crash reports. Only in its files for Fabric 1.20 to 26.3. See Privacy
    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them.

    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 20 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.
      23 latest files: the newest file for each Minecraft version and loader. The answer above is about the 20 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.
      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 20 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 20 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, images, sounds and code history 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 · 7 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 README.
      Nothing found
    • 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 filesCredits and texts in the files you download that name an AI tool.
      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
      9 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
      1 sound file 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
      660 code files read

    Compatibility

    See all 96 files
    Fabric
    NeoForge
    Forge
    1.191.2126.1

    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.Nothing
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    LanguagesThe languages the text in the game is available in, from the language files of its latest files we checked. A language file can translate only part of the text.English, Deutsch and Português
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Faster than most mods. On average, it gets a file 12 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Related projects

    Projects that need Contagion - A Zombie Infection / Infectious Mod to work.

    ProjectTypeDownloadsGrade
    Zombie CabinDMod161 downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    20100
    Oct 2024: 3 modpacksNov 2024: 5 modpacksDec 2024: 1 modpackJan 2025: 3 modpacksFeb 2025: 7 modpacksMar 2025: 7 modpacksApr 2025: 8 modpacksMay 2025: 4 modpacksJun 2025: 6 modpacksJul 2025: 5 modpacksAug 2025: 3 modpacksSep 2025: 3 modpacksOct 2025: 5 modpacksNov 2025: 4 modpacksDec 2025: 6 modpacksJan 2026: 6 modpacksFeb 2026: 3 modpacksMar 2026: 14 modpacksApr 2026: 12 modpacksMay 2026: 9 modpacksJun 2026: 12 modpacksJul 2026: 9 modpacksAug 2026: 7 modpacksSep 2026: 9 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20243
    Nov 20245
    Dec 20241
    Jan 20253
    Feb 20257
    Mar 20257
    Apr 20258
    May 20254
    Jun 20256
    Jul 20255
    Aug 20253
    Sep 20253
    Oct 20255
    Nov 20254
    Dec 20256
    Jan 20266
    Feb 20263
    Mar 202614
    Apr 202612
    May 20269
    Jun 202612
    Jul 20269
    Aug 20267
    Sep 20269

    More modpacks put it in their new versions than a year ago: 10 a month now, 5 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..

    119 modpacks include Contagion - A Zombie Infection / Infectious Mod in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    ZombieCraft: Zombie Apocalypse749K downloadslast version with it 22 Apr 2025Zombie Apocalypse254K downloadslast version with it 27 Nov 2024World War Z - Zombie Apocalypse | A Zombie Survival Apocalypse70K downloadslast version with it 9 Nov 2025Plants vs Zombies Overgrowth21K downloadslast version with it 13 May 2026Zombie Apocalypse: Optimized15K downloadslast version with it 26 Nov 2025Industrial Odyssey13K downloadslast version with it 17 Jul 2026zombie apocalypse [MAP]9.9K downloadslast version with it 27 Nov 2024found footage9.8K downloadslast version with it 23 Nov 2024One Block Hardcore9.6K downloadslast version with it 3 Jan 2026APOC - A Modern Zombie Apocalypse Experience8.9K downloadslast version with it 11 Feb 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Contagion - A Zombie Infection / Infectious Mod. Share: how many of the modpacks with Contagion - A Zombie Infection / Infectious Mod also have that mod.

    ProjectTypeShareGrade
    Zombie AwarenessCModin 60% of the modpacks with Contagion - A Zombie Infection / Infectious Mod[TaCZ] Timeless and Classics ZeroAModin 44% of the modpacks with Contagion - A Zombie Infection / Infectious ModSerene SeasonsAModin 38% of the modpacks with Contagion - A Zombie Infection / Infectious ModBadOptimizationsAModin 37% of the modpacks with Contagion - A Zombie Infection / Infectious ModFerriteCoreAModin 37% of the modpacks with Contagion - A Zombie Infection / Infectious ModThe Lost CitiesAModin 35% of the modpacks with Contagion - A Zombie Infection / Infectious ModFresh AnimationsAResource packin 34% of the modpacks with Contagion - A Zombie Infection / Infectious ModUndead Nights - Zombie Horde Nights / HordesAModin 34% of the modpacks with Contagion - A Zombie Infection / Infectious ModLithiumAModin 32% of the modpacks with Contagion - A Zombie Infection / Infectious ModEssential ModBModin 32% of the modpacks with Contagion - A Zombie Infection / Infectious Mod
    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
    26.3·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.2·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.1.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.1·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·Fabric1.5.61.5.6 · Contagion-1.5.6-Fabric-mc1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·NeoForge1.5.71.5.7 · Contagion-1.5.7-NeoForge-mc1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·Fabric1.5.61.5.6 · Contagion-1.5.6-Fabric-mc1.21.9.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 23123

    96 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.3.jar (main file)·24 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 138.4 KB
    26.3The latest file for its Minecraft version and loader·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.3.jar (main file)·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20.1The latest file for its Minecraft version and loader·Forge2.2.02.2.0 · Contagion-2.2.0-Forge-mc1.20.1.jar (main file)·3 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 148.3 KB
    26.2The latest file for its Minecraft version and loader·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.2.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc26.1.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20 to 1.20.11.20 to 1.20.1The latest file for its Minecraft version and loader·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc1.20.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Fabric2.1.22.1.2 · Contagion-2.1.2-Fabric-mc1.21.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    26.1.2The latest file for its Minecraft version and loader·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.1.2.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 138.3 KB
    26.1 to 26.1.126.1 to 26.1.1The latest file for its Minecraft version and loader·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.1.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 138.3 KB
    26.2The latest file for its Minecraft version and loader·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc26.2.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 138.0 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric2.1.12.1.1 · Contagion-2.1.1-Fabric-mc26.1.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    26.2·Fabric2.1.12.1.1 · Contagion-2.1.1-Fabric-mc26.2.jar (main file)·31 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge2.1.12.1.1 · Contagion-2.1.1-NeoForge-mc1.21.jar (main file)·10 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 136.1 KB
    1.21 to 1.21.11.21 to 1.21.1·Fabric2.1.12.1.1 · Contagion-2.1.1-Fabric-mc1.21.jar (main file)·10 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20 to 1.20.11.20 to 1.20.1·Fabric2.1.12.1.1 · Contagion-2.1.1-Fabric-mc1.20.jar (main file)·9 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20.1·Forge2.1.12.1.1 · Contagion-2.1.1-Forge-mc1.20.1.jar (main file)·9 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 140.0 KB
    1.20 to 1.20.11.20 to 1.20.1·Fabric2.1.02.1.0 · Contagion-2.1.0-Fabric-mc1.20.jar·9 Jul 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20.1·Forge2.1.02.1.0 · Contagion-2.1.0-Forge-mc1.20.1.jar (main file)·9 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 140.2 KB
    1.20 to 1.20.11.20 to 1.20.1·Fabric2.0.12.0.1 · Contagion-2.0.1-Fabric-mc1.20.jar (main file)·7 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.20.1·Forge2.0.02.0.0 · Contagion-2.0.0-Forge-mc1.20.1.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 138.2 KB
    1 to 20 of 9612345

    Quick fixes

    In the last 2 years, 4 releases 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
    • 2.1.2-Fabric-mc26.11 Aug 2026fix crash when saving config in mod menu
    • 2.1.1-Forge-mc1.20.19 Jul 2026fix: infection reset with gold streaked flesh not…
    • 1.5.2-NeoForge-mc1.216 Jan 2025fix for problem with dedicated servers (issue #19)
    • 1.4.3-NeoForge-mc1.2116 Dec 2024fix problem on Forge/NeoForge with drop rate for Contagious…