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

    Opolis Inc

    Modpack

    A modpack about buying and selling items.

    91%Modpack: 91% of its graded mods are A or Bof mods A or B
    • Overview91%
    • SecurityPassed
    • Privacy7 send data
    • AIIn 12 mods
    • CompatibilityMinecraft 1.21.1
    • ReleasesLatest 25 Apr

    Download

    Opolis Inc-3.2.zip

    Released 25 Apr 2026 · 4.4 MB

    Passed: all 178 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 178 graded mods, 162 are graded A or B, 13 C and 3 D to F. Its last update came out 6 months ago, for Minecraft 1.21.1. See the mods

    Images

    • opolis_inc_1.png

    About

    Opolis Inc is a production-and-trading modpack built around harvesting or generating resources, turning them into increasingly complex products, and selling those products to earn Bucks for better items and greater productivity. Its industrial toolkit includes Mekanism machinery, Applied Energistics matter-energy storage networks, Mystical Agriculture crops, and Opolis Inc machines such as casting equipment and the Market. Casting supports melting, mixing, and casting fluids as part of resource automation, while the Market provides the means to sell what you produce.

    Written from CurseForge . How we write it

    Content of this pack178 of 178 checked

    The mods of its newest release (Minecraft 1.21.1 · NeoForge, 25 Apr 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.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.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.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.JourneyMapMod · 371.8M downloadsAPassedPassed: 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.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.Enchantment DescriptionsMod · 337.5M 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.Nature's CompassMod · 332.6M downloadsAPassedPassed: 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.FancyMenuMod · 299.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.KonkreteMod · 295.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 17812345…8
    Changes since the previous release · 1 added

    Compared with the release of 13 Jan 2026 for the same platform, Minecraft version and loader. We do not compare the versions of the mods yet.

    Added
    Better Compatibility Checker
    Share graded A or B
    unchanged

    Details

    Creator
    benbenlaw
    License
    Not known
    Downloads
    145K
    Created
    30 Aug 2024
    Official page
    CurseForge

    Security

    No harmful code found in its projects

    We checked all 178 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 178 projects checked
    • Its projects
      See what is in this pack
      178 projects
    • Files in the pack itself
      1,582 settings files, 23 scripts, 139 other files, no mod jars.

    Privacy

    7 mods send something about you

    We read the code of all 175 of its mods, without running it.

    Entity CullingCrash reportsJourneyMapSystem detailsCollectivePlayer IDFancyMenuCrash reportssparkUnknown dataNeruina - Ticking Entity FixerUnknown dataObservableUnknown 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 · All 175 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      BookshelfPlaceboMoonlight LibFTB Library (NeoForge)RhinoKubeJSPrickleHammerLibAdditional StructuresMekanism AdditionsBisectHosting Server Integration Menu [NEOFORGE]Cable FacadesBBL Core
      13 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.
      155 mods

    AI

    AI used in 12 of the 147 mods we checked

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

    28 mods are not checked yet.

    Just Enough Items (JEI)Claude CodeWaystonesClaude CodeJade 🔍GitHub Copilot (coding agent)ModernFixClaude CodeFancyMenuCodexPuzzles LibdeclaredApplied Energistics 2Claude CodeFTB Quests (NeoForge)GitHub CopilotFTB Chunks (NeoForge)GitHub CopilotLeaves Be GonedeclaredSimple BackupsdeclaredAdvanced Loot Info (ALI)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 and images 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
      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 26 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.178 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.

    26 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1·NeoForge3.23.2 · Opolis Inc-3.2.zip·25 Apr 2026PassedPassed: all 178 projects checked.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge3.13.1 · Opolis Inc 3.1.zip·13 Jan 2026Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.5 MB
    1.21.1·NeoForge3.03.0 · Opolis Inc 3.0.zip·7 Jan 2026Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.7 MB
    1.21.1·NeoForge2.32.3 · Opolis Inc-2.3.zip·24 Jun 2025Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 6.0 MB
    1.21.1·NeoForge2.22.2 · Opolis Inc-2.2.zip·13 Jun 2025Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 6.0 MB
    1.21.1·NeoForge2.12.1 · Opolis Inc-2.1.zipBeta·12 Jun 2025Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Beta · 6.0 MB
    1.21.1·NeoForge2.02.0 · Opolis Inc-2.0.zipBeta·5 Jun 2025Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Beta · 6.0 MB
    1.21.1·NeoForge1.61.6 · Opolis Inc 1.6.zip·9 Dec 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge1.51.5 · Opolis Inc 1.5.zip·9 Dec 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge1.41.4 · Opolis Inc-1.4.zip·29 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge1.31.3 · Opolis Inc-1.3.zipAlpha·29 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Alpha · 4.4 MB
    1.21.1·NeoForge1.21.2 · Opolis Inc-1.2.zip·21 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge1.11.1 · Opolis Inc-1.1.zip·19 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForge1.01.0 · Opolis Inc 1.0.zip·10 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 4.4 MB
    1.21.1·NeoForgeB8.1B8.1 · Opolis Inc B8.1.zip·3 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·NeoForgeB8.0B8.0 · Opolis Inc B8.0.zip·2 Nov 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·NeoForgeB7.0B7.0 · Opolis Inc-B7.0.zip·20 Oct 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·NeoForgeB6.1B6.1 · Opolis Inc-B6.1.zip·16 Oct 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·NeoForgeB6.0B6.0 · Opolis Inc-B6.0.zip·15 Oct 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·NeoForgeB5.0B5.0 · Opolis Inc-B5.0.zip·4 Oct 2024Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 3.3 MB
    1 to 20 of 2612