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    2,054,849 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 2026.269,417 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.

    Butterfly Effect

    Modpack

    A look at what Minecraft might be like if it evolved differently.

    68%Modpack: 68% of its graded mods are A or Bof mods A or B
    • Overview68%
    • SecurityPartly checked
    • Privacy4 send data
    • AIIn 14 mods
    • CompatibilityMinecraft 1.20.1
    • ReleasesLatest 10 Jun

    Download

    Butterfly Effect-1.2.zip

    Released 10 Jun 2026 · 848.0 KB

    Partly checked: 234 of 239 projects checked (5 not checked yet). 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 238 graded mods, 162 are graded A or B, 56 C and 20 D to F. Its last update came out 4 months ago, for Minecraft 1.20.1. See the mods

    Content of this pack234 of 239 checked

    The mods of its newest release (Minecraft 1.20.1 · Forge, 10 Jun 2026). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ProjectGradeSecurity
    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.GeckolibMod · 500.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.BookshelfMod · 473M 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.Xaero's MinimapMod · 377.5M downloadsBPassedPassed: 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.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.Moonlight LibMod · 336.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Nature's CompassMod · 332.6M 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.Puzzles LibMod · 291.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Sophisticated BackpacksMod · 272.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.[ETF] Entity Texture FeaturesMod · 272.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.YetAnotherConfigLib (YACL)Mod · 266.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Kotlin for ForgeMod · 263.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.SupplementariesMod · 260.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.[EMF] Entity Model FeaturesMod · 252.9M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CreateMod · 244.6M downloadsBPassedPassed: our checks found nothing harmful in the latest files.sparkMod · 242M downloadsAPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 23912345…10
    Changes since the previous release · 32 added, 81 removed

    Compared with the release of 22 Oct 2025 for the same platform, Minecraft version and loader. We do not compare the versions of the projects yet.

    Added
    End RemasteredCreate Horse PowerCorpse, But BetterSophisticated Storage in MotionMech TrowelCreate: Sophisticated Backpacks CompatYukami's Sophisticated Backpack TabImmersive Weathering Panda's CompatContinuity Version FixXaero's MinimapXaero's World MapConstruction WandSophisticated BackpacksReimaginedVillager RecruitsLootJS: KubeJS AddonEMISophisticated CoreSophisticated StorageJust HammersEMI LootCreate Mechanical ExtruderEMI TradesEMIffectMaFgLibEMI EnchantingEMI: Create SchematicsCreate: MetalworkCreate: Copycats+EMI OresCreate: Ultimate FactoryCritters n' Crawlers
    Removed
    Via Romana: Infrastructure-Driven Fast TravelDeimosData AnchorExplorer's Compass EditedMebahel's Skeleton RevivalJust Enough Resources (JER)Enchantment DescriptionsCreativeCoreSignpostJEI IntegrationGottschCoreTreasure2Serene SeasonsEffortless BuildingTenshiLibCorpseCitadelNo LAN CheatingBackpackedStarter KitEnd RemasteredMC Dungeons WeaponsKonkreteJust Enough Professions (JEP)Majrusz's Progressive DifficultyMajrusz LibraryNot Enough Crashes (Forge)Smelting Sand in Blast FurnaceRightClickHarvestFresh AnimationsSuperMartijn642's Core LibAtlas LibMidnightLibExplorer's CompassDistant HorizonsCopper EquipmentPaxiMap Atlases [Forge]ContinuityJust Enough Effect Descriptions (JEED)FrameworkCreeper OverhaulTerraBlenderExtractinatorEnderman OverhaulServer Performance - Smooth Chunk SaveAdditional Additions for NeoForge: Vanilla+ QoL, Sniffers, Music, FoodSimple BackupsNecronomicon APIJamLibBetter CombatplayerAnimatorShow Fps on screenFLIBHorse ExpertCorgiLibIntegrated APIResource Pack OverridesBetter ArcheologyAthenaSmelt All Stone Blocks in Blast FurnacesThin AirCreate Air Forge (A ThinAir compat)RunicLibForgified Fabric APISinytra ConnectorJust Enough ArchaeologyWorld PreviewAmendmentsJust Enough Breeding (JEBr)Just Enough Beacons ReforgedConnector ExtrasCurseForge project 930207LithostitchedMelodyCreate Hand Crafting - 1.18.2 - 1.20.1GlitchCoreSmelt Clay & Terracotta in Blast FurnacesSawmillZetaSpectreLib
    Share graded A or B
    down 6 points

    Details

    Creator
    RockYourWorld31
    License
    Not known
    Downloads
    150
    Created
    22 Oct 2025
    Official page
    CurseForge

    Security

    No harmful code found in the projects we checked

    We checked 234 of its 239 projects, 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 · 234 of 239 projects checked
    • Its projects
      See what is in this pack
      239 projects
    • Not checked yet
      Villagers Sell Animals [NoCube's Mods]NoCube's Better Blast FurnaceImmersive Weathering Panda's CompatEnd RemasteredImmersive Tools And Weapons Sounds [FORGE]
      5 projects
    • Files in the pack itself
      Not checked yet.

    Privacy

    4 mods send something about you

    We read the code of 232 of its 238 mods, without running it.

    CollectivePlayer ID[ETF] Entity Texture FeaturesPlayer namesparkUnknown dataLet Me DespawnUsage 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 · 232 of 238 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      BookshelfXaero's MinimapPlaceboMoonlight LibXaero's World MapSupplementariesRhinoKubeJSForgeEndertechEuphoria PatchesBlueprintAlmanacFriends&Foes (Forge/NeoForge)Better Clouds ReforgedTraveler's Compass
      15 mods
    • Crash reports or usage dataTheir author declares crash reports or usage data on Modrinth, or such a service is named in their files. Reading their code did not show it.
      KubeJSdeclared by its author
      1 mod
    • Send nothing
      Their code contacts no web address.
      213 mods
    • Not read yet
      We have not read their code yet.
      6 mods

    AI

    AI used in 14 of the 202 mods we checked

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

    36 mods are not checked yet.

    Just Enough Items (JEI)Claude CodeJade 🔍GitHub Copilot (coding agent)Puzzles LibdeclaredSupplementariesClaude CodeEuphoria PatchesGitHub CopilotVisual WorkbenchdeclaredBetterF3Claude CodePick Up NotifierdeclaredInsaneLibClaude CodeOverflowing BarsdeclaredEnhanced AIClaude CodeBlock RunnerdeclaredCreate: MetalworkdeclaredBurnt + Additionsdeclared

    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 2 files
    Forge
    1.201.2126.126.3

    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.239 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 1.20.1. Many recently updated mods still support 1.20.1.

    2 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1·Forge1.21.2 · Butterfly Effect-1.2.zip·10 Jun 2026Partly checkedPartly checked: 234 of 239 projects checked (5 not checked yet).Open this file on CurseForgeDownload · Stable · 848.0 KB
    1.20.1·Forge1.01.0 · Butterfly Effect-1.0.zip·22 Oct 2025Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 23.9 MB