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    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.
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    UnionPACK - A zombie apocalypse Pack

    Modpack

    A zombie apocalypse modpack featuring custom zombies, dangerous dungeons, tech mods like Mekanism & AE2, MineColonies, food and decoration mods. Created for the MG4-U community project, but fully playable in singleplayer or on your own server.

    87%Modpack: 87% of its graded mods are A or Bof mods A or B
    • Overview87%
    • SecurityPartly checked
    • Privacy4 send data
    • AIIn 14 mods
    • CompatibilityMinecraft 1.21.1
    • ReleasesLatest 12 Feb

    Download

    UnionPACK-1.3.1.zip

    Released 12 Feb 2026 · 756.5 KB

    Partly checked: 197 of 198 mods checked (1 not checked yet). See Security

    Open on CurseForge
    OverviewSecurityPrivacyAICompatibilityReleases

    Mod grades

    How grades work

    Modpacks get no grade of their own, so we show the grades of its mods. Of its 198 graded mods, 173 are graded A or B, 25 C and none D to F. Its last update came out 8 months ago, for Minecraft 1.21.1. See the mods

    Mods in this pack197 of 198 checked

    The mods of its newest release (Minecraft 1.21.1 · NeoForge, 12 Feb 2026). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ModGradeSecurity
    Just Enough Items (JEI)Mod · 725.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Cloth Config APIMod · 569.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Mouse TweaksMod · 548.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.AppleSkinMod · 519.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.GeckolibMod · 500.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Architectury APIMod · 460M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ControllingMod · 441.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Entity CullingMod · 425.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ClumpsMod · 420.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.SodiumMod · 412.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Xaero's MinimapMod · 377.5M downloadsBPassedPassed: our checks found nothing harmful in the latest files.WaystonesMod · 354M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Jade 🔍Mod · 354M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Curios APIMod · 350M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CollectiveMod · 342.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Iris ShadersMod · 337.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Moonlight LibMod · 336.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ModernFixMod · 334.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Xaero's World MapMod · 330.9M downloadsBPassedPassed: our checks found nothing harmful in the latest files.ImmediatelyFastMod · 329.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.BalmMod · 329M downloadsAPassedPassed: our checks found nothing harmful in the latest files.KonkreteMod · 295.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Puzzles LibMod · 291.5M 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.
    1 to 25 of 19812345…8
    Changes since the previous release · 127 added

    Compared with the release of 12 Feb 2026 for the same platform, Minecraft version and loader. We do not compare the versions of the mods yet.

    Added
    Snowy TentsMacaw's StairsGuideMECryonic ConfigFast Item FramesRefined Storage - JEI IntegrationRefined Storage - Mekanism IntegrationZombie Tactics 2Abandoned WatchtowersMedieval Buildings [Nether Edition]Serene Seasons PlusRefined TypesXaero's Maps x WaystonesFTB Chunks x Xaero's CompatGabou's LibsApplied Energistics 2Storage DrawersIron ChestsFast Leaf DecayJust Enough Items (JEI)GraveStone ModJust Enough Resources (JER)NetherPortalFixCodeChicken LibEnder Storage 1.8.+MinecoloniesWaystonesAppleSkinControllingElevatorModAmbientSoundsTropicraftThe AetherClumpsMekanismMekanism GeneratorsMekanism ToolsComfortsTitaniumLarge Fluid TankSerene SeasonsBetter Ping Display [Forge/NeoForge]StructurizeMulti-PistonKiwi 🥝Refined Storage: RequestifySnow! Real Magic! ⛄Curios APIScalable Cat's ForceJade 🔍CollectiveCloth Config APIDouble DoorsKotlin for ForgeExtra DisksMacaw's BridgesMacaw's RoofsMacaw's FurnitureGuard VillagersLootrMacaw's WindowsGeckolibSodiumFTB Library (NeoForge)FTB Teams (NeoForge)Chat HeadsKonkreteSimple Voice ChatJust Enough Professions (JEP)Architectury APIFerriteCore ((Neo)Forge)FramedBlocksAnimal Feeding TroughEntity CullingRightClickHarvestMacaw's Fences and WallsIris ShadersConfiguredApplied Energistics 2 Wireless TerminalsFalling Leaves (NeoForge/Forge)MidnightLibPuzzles LibMoonlight LibMedieval MusicBlockUIDomum OrnamentumBalmoωo (owo-lib)Sound Physics RemasteredFrameworkChisel RebornJust ZoomResourceful LibApplied MekanisticsSimple BackupsEnderTanksMouse TweaksJamLibNo Chat ReportsStructoryFactory BlocksDeeper and DarkerSpiky SpikesYetAnotherConfigLib (YACL)MRUJust HammersImmediatelyFastSeasonHudResourceful ConfigShetiPhianCoreStructory: TowersModernFixStylecoloniesAthenaSearchablesfix GPU memory leakFast PaintingsMrCrayfish's Furniture Mod: RefurbishedJust Enough Mekanism MultiblocksTownTalkClean Swing Through GrassMedieval BuildingsSoundsGlitchCoreMedieval Buildings [End Edition]Whisperer's Jungle TempleAE2 Import Export Card
    Share graded A or B
    up 8 points

    Details

    Creator
    David14821
    License
    Not known
    Downloads
    265
    Created
    26 Jan 2026
    Official page
    CurseForge

    Security

    No harmful code found in the mods we checked

    We checked 197 of its 198 mods, without running them.

    We have not checked the files in the pack itself yet (settings, scripts).

    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 · 197 of 198 mods checked
    • Its projects
      See what is in this pack
      198 mods
    • Not checked yet
      SmallColonies for Minecolonies
      1 mod
    • Files in the pack itself
      Not checked yet.

    Privacy

    4 mods send something about you

    We read the code of 196 of its 198 mods, without running it.

    Entity CullingCrash reportsCollectivePlayer IDCreeper OverhaulPlayer IDChunkyUsage data

    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 · 196 of 198 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      Xaero's MinimapIris ShadersMoonlight LibXaero's World MapFTB Library (NeoForge)The Twilight ForestSimple Voice ChatImmersive EngineeringKiwi 🥝SecurityCraftThe AetherMinecoloniesDistant HorizonsAdditional StructuresCitadel (Unofficial Port)Xaero's Maps x WaystonesMekanism Weaponry
      17 mods
    • Send nothing
      Their code contacts no web address.
      175 mods
    • Not read yet
      We have not read their code yet.
      2 mods

    AI

    AI used in 14 of the 166 mods we checked

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

    32 mods are not checked yet.

    Just Enough Items (JEI)Claude CodeWaystonesClaude CodeJade 🔍GitHub Copilot (coding agent)Iris ShadersdeclaredModernFixClaude CodePuzzles LibdeclaredApplied Energistics 2Claude CodeRefined StorageClaude CodeFTB Chunks (NeoForge)GitHub CopilotKiwi 🥝declaredSimple BackupsdeclaredScalable Cat's ForceClaude CodeFast Item FramesdeclaredSpiky Spikesdeclared

    Made with AI: not checked yet

    We have not looked for AI tools in the pack itself 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 in the description
      Changelogs not read yet
    • 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 6 files
    NeoForge
    1.2126.126.2

    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.198 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.It has no file for Minecraft versions newer than 1.21.1. Many recently updated mods still support 1.21.1.

    6 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1·NeoForge1.3.11.3.1 · UnionPACK-1.3.1.zip·12 Feb 2026Partly checkedPartly checked: 197 of 198 mods checked (1 not checked yet).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.
    1.21.1·NeoForge1.3.01.3.0 · UnionPACK-1.3.0.zip·12 Feb 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.
    1.21.1·NeoForge1.2.01.2.0 · UnionPACK-1.2.0.zip·8 Feb 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.
    1.21.1·NeoForge1.1.01.1.0 · UnionPACK-1.1.0.zip·4 Feb 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.
    1.21.1·NeoForge1.0.11.0.1 · UnionPACK-1.0.1.zip·3 Feb 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.
    1.21.1·NeoForge1.01.0 · UnionPACK-1.0.zip·30 Jan 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.