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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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    Hardcore Nightmare IV

    Modpack

    The fourth iteration of insane hardcore survival!

    28%Modpack: 28% of its graded mods are A or Bof mods A or B
    • Overview28%
    • SecurityPassed
    • Privacy5 send data
    • AIIn 6 mods
    • CompatibilityMinecraft 1.12.2
    • ReleasesLatest Apr 2022

    Download

    Hardcore Nightmare IV-1.21.zip

    Released 2 Apr 2022 · 22.8 MB

    Passed: all 245 projects checked. See Security

    Download
    OverviewSecurityPrivacyAICompatibilityReleases

    Mod grades

    How grades work

    Modpacks get no grade of their own, so we show the grades of its mods. Of its 234 graded mods, 65 are graded A or B, 27 C and 142 D to F. Its last update came out 4.6 years ago, for Minecraft 1.12.2. See the mods

    Images

    • Pictures taken moments before disasters
    • What will your shelter look like?
    • Terrors of the night
    • Raging tornadoes
    • Wildlife fights back
    • Destructive mobs
    • Enhanced mob mechanics
    • An ordinary night
    • Spawner insanity
    • How far will you go?
    • Sheep attack a hungry zombie
    • Varied underground
    • Custom ruins
    • Main menu
    • Title image

    Content of this pack245 of 245 checked

    The mods of its newest release (Minecraft 1.12.2 · Forge, 2 Apr 2022). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ProjectGradeSecurity
    AppleSkinMod · 519.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.BookshelfMod · 473M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ControllingMod · 441.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ClumpsMod · 420.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Jade 🔍Mod · 354M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CollectiveMod · 342.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.PatchouliMod · 341.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.PlaceboMod · 340.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CreativeCoreMod · 284.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ComfortsMod · 277.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.AttributeFixMod · 258.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Just Enough Resources (JER)Mod · 251.9M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Carry OnMod · 251.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CraftTweakerMod · 233.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.MantleMod · 231.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Iron ChestsMod · 224.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Cooking for BlockheadsMod · 200.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Tinkers' ConstructMod · 199.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Toast ControlMod · 195.2M downloadsBPassedPassed: our checks found nothing harmful in the latest files.NetherPortalFixMod · 192.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.FastWorkbenchMod · 186.9M downloadsBPassedPassed: our checks found nothing harmful in the latest files.CoroUtilMod · 177.9M downloadsBPassedPassed: our checks found nothing harmful in the latest files.AmbientSoundsMod · 174.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Cyclops CoreMod · 160.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.FastFurnaceMod · 151.9M downloadsBPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 24512345…10

    4 files not listed: no matching project found.

    Changes since the previous release · 13 added, 5 removed

    Compared with the release of 5 Nov 2021 for the same platform, Minecraft version and loader. We do not compare the versions of the mods yet.

    Added
    UniDictWanionLibParaglidersFragile BlocksAqua Acrobatics [Forge]Matchlock Guns[LEGACY] InvMove (Forge)Better Third PersonHot or Not PlusTinkers OreDict CacheHad Enough ItemsTinker ToolcastsBisectHosting Server Integration Menu
    Removed
    Just Enough Items (JEI)Hot or NotCurseForge project 301455Nimble (Forge)Realistic Block Physics
    Share graded A or B
    unchanged

    Details

    Creator
    ACGaming
    License
    Not known
    Downloads
    7.4K
    Created
    10 May 2018
    Official page
    CurseForge
    Links
    Source code

    Security

    No harmful code found in its projects

    We checked all 245 projects and the files in the pack itself, without running them.

    Why we show this: a modpack installs the files of its mods, and each mod runs on your computer like any program. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: a modpack has no grade of its own, and each mod's result counts in that mod's grade.

    How we checked · All 245 projects checked
    • Its projects
      See what is in this pack
      245 projects
    • Files in the pack itself
      2,743 settings files, 6 scripts, 455 other files, no mod jars.

    Privacy

    5 mods send something about you

    We read the code of all 236 of its mods, without running it.

    CollectivePlayer IDCustom Main MenuPlayer nameLLibraryCrash reportsVanillaFixUnknown dataChibiCrash reports

    Why we show this: a modpack runs the code of its mods, and 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 236 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      BookshelfPlaceboCraftTweakerForgeEndertechKiwi 🥝BisectHosting Server Integration MenuLunatriusCoreAdditional StructuresHatsRandomTweaksMixinBooterAnimania BaseFossils and Archeology: RevivalSledgehammerMagneticraftMineTrapsVillage NamesOnlinePictureFrameJJ MeteorASMCMob MashMob Spawning Plus
      22 mods
    • Send nothing
      Their code contacts no web address.
      209 mods

    AI

    AI used in 6 of the 107 mods we checked

    We found an AI tool in them, or their authors declared AI content.

    129 mods are not checked yet.

    Jade 🔍GitHub Copilot (coding agent)Cyclops CoreClaude Code +2Kiwi 🥝declaredDynamic SurroundingsClaude CodeEverlasting AbilitiesClaude Code +1Insane's Survival Overhaul (aka IguanaTweaks Reborn)Claude Code

    No sign so far that AI was used to make the pack itself

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

    We have not read its files, images and code history 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.
    • 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
      2 of 40 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

    Compatibility

    See all 23 files
    Forge
    1.121.151.171.2026.1

    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.Nothing
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.245 projects, listed in the Overview tab.
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.No file yet for any of the last 6 Minecraft versions.

    23 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12.2·Forge1.211.21 · Hardcore Nightmare IV-1.21.zip·2 Apr 2022PassedPassed: all 245 projects checked.Open this file on CurseForgeDownload · Stable · 22.8 MB
    1.12.2·Forge1.201.20 · HNIV_1.20.zip·5 Nov 2021Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 22.6 MB
    1.12.2·Forge1.191.19 · Hardcore Nightmare IV-1.19.zip·20 Aug 2021Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 22.9 MB
    1.12.2·Loader not stated1.181.18 · Hardcore Nightmare IV-1.18.zip·2 May 2021Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 22.8 MB
    1.12.2·Loader not stated1.171.17 · Hardcore Nightmare IV-1.17.zip·21 Feb 2021Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 22.5 MB
    1.12.2·Loader not stated1.16.11.16.1 · Hardcore Nightmare IV-1.16.1.zip·23 Nov 2020Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 21.3 MB
    1.12.2·Loader not stated1.161.16 · Hardcore Nightmare IV-1.16.zip·8 Jul 2020Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 21.3 MB
    1.12.2·Loader not stated1.151.15 · Hardcore Nightmare IV-1.15.zip·16 Jun 2020Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 46.2 MB
    1.12.2·Loader not stated1.141.14 · Hardcore Nightmare IV-1.14.zip·4 Apr 2020Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 29.2 MB
    1.12.2·Loader not stated1.131.13 · Hardcore Nightmare IV-1.13.zip·6 Nov 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 28.3 MB
    1.12.2·Loader not stated1.121.12 · Hardcore Nightmare IV-1.12.zip·18 Oct 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 19.1 MB
    1.12.2·Loader not stated1.111.11 · Hardcore Nightmare IV-1.11.zip·7 Sep 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 14.9 MB
    1.12.2·Loader not stated1.101.10 · Hardcore Nightmare IV-1.10.zip·14 Jul 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.5 MB
    1.12.2·Loader not stated1.91.9 · Hardcore Nightmare IV-1.9.zip·22 Apr 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.7 MB
    1.12.2·Loader not stated1.81.8 · Hardcore Nightmare IV-1.8.zip·7 Apr 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.7 MB
    1.12.2·Loader not stated1.71.7 · Hardcore Nightmare IV-1.7.zip·31 Mar 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.6 MB
    1.12.2·Loader not stated1.61.6 · Hardcore Nightmare IV-1.6.zip·17 Feb 2019Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.7 MB
    1.12.2·Loader not stated1.5.11.5.1 · Hardcore Nightmare IV-1.5.1.zip·22 Dec 2018Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 13.1 MB
    1.12.2·Loader not stated1.41.4 · Hardcore Nightmare IV-1.4.zip·2 Dec 2018Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 12.1 MB
    1.12.2·Loader not stated1.3.11.3.1 · Hardcore Nightmare IV-1.3.1.zip·4 Nov 2018Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 12.0 MB
    1 to 20 of 2312