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    2,058,425 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.641,484 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,800 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.

    Twenty Leagues Under The Seas

    ModpackNo update for 4.5 years

    Be a deep sea explorer in a world dominated by water and sea life

    55%Modpack: 55% of its graded mods are A or Bof mods A or B
    Security
    Partly checked
    Privacy
    7 send data
    Loaders
    Fabric
    Minecraft versions
    Minecraft 1.18.2
    • Overview55%
    • SecurityPartly checked
    • Privacy7 send data
    • AINone found
    • CompatibilityMinecraft 1.18.2
    • ReleasesLatest May 2022

    Download

    20 Leagues-1.1.2.zip

    Released 6 May 2022 · 12.0 MB

    Partly checked: 145 of 146 mods checked (1 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 133 graded mods, 73 are graded A or B, 10 C and 50 D to F. Its newest release is for Minecraft 1.18.2. See the mods

    Images

    • promo
    • community
    • overview
    • title

    Mods in this pack145 of 146 checked

    The mods of its newest release (Minecraft 1.18.2 · Fabric, 6 May 2022). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ModGradeSecurity
    Mouse TweaksMod · 548.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Fabric APIMod · 528.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.GeckolibMod · 500.9M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ControllingMod · 441.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ClumpsMod · 420.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Nature's CompassMod · 332.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Mod MenuMod · 245.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.sparkMod · 242.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Applied Energistics 2Mod · 236M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CraftTweakerMod · 233.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Fabric Language KotlinMod · 219.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.RhinoMod · 201.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.oωo (owo-lib)Mod · 134.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.BetterF3Mod · 116.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.LambDynamicLights - Dynamic LightsMod · 111.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Reborn CoreMod · 108.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Roughly Enough Items (REI)Mod · 85.6M downloadsBPassedPassed: our checks found nothing harmful in the latest files.TrinketsMod · 80.8M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Applied Energistics 2 Wireless TerminalsMod · 79.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.RightClickHarvestMod · 76.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.EcologicsMod · 63.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CroptopiaMod · 57.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Konkrete [Fabric] [MOVED TO NEW PAGE]Mod · 56.6M downloads-PassedPassed: our checks found nothing harmful in the latest files.Cardinal Components APIMod · 53.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ObservableMod · 52.6M downloadsCPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 146123456

    5 files not listed: no matching project found.

    Changes since the previous release · 3 added, 1 removed

    Compared with the release of 1 May 2022 for the same platform, Minecraft version and loader. We do not compare the versions of the mods yet.

    Added
    FTB Chunks (Fabric), FTB Ranks (Fabric) and BisectHosting Server Integration Menu [FABRIC]
    Removed
    JourneyMap
    Share graded A or B
    up 1 point

    Details

    Creator
    kreezxil
    License
    Not known
    Downloads
    444
    Created
    1 May 2022
    Official page
    CurseForge

    Security

    No harmful code found in the mods we checked

    We checked 145 of its 146 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 · 145 of 146 mods checked
    • Its projects
      See what is in this pack
      146 mods
    • Not checked yet
      Cat Eyes - Night Vision Toggle Mod (Fabric)
      1 mod
    • Files in the pack itself
      Not checked yet.

    Privacy

    7 mods send something about you

    We read the code of 145 of its 146 mods, without running it.

    Mod MenuData we could not identifysparkData we could not identifyObservableData we could not identifyNot Enough CrashesCrash reports +1Auth MeData we could not identifyFancyMenu [Fabric] [MOVED TO NEW PROJECT]Player name +3In-Game Account SwitcherData we could not identify

    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 · 145 of 146 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      CraftTweakerRhinoRoughly Enough Items (REI)FTB Library (Fabric)BisectHosting Server Integration Menu [FABRIC]Inventory SortingWTHITAntiGhostUniversal GravesGiselbaer's Durability ViewerFabric Language ScalaHookshotClickThroughEssential Commands
      14 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.
      Inventory Sortingfound in its files
      1 mod
    • Send nothing
      Their code contacts no web address.
      124 mods
    • Not read yet
      We have not read their code yet.
      1 mod

    AI

    No sign that AI was used to make its mods

    We found no AI use from before this release (6 May 2022) in the 94 mods we checked.

    9 mods show AI use only from after it, so it does not apply to the versions in this pack.

    52 mods are not checked yet.

    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 4 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 2 files
    Fabric
    1.181.201.2126.1

    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.146 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.

    2 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.18.2·Fabric20-Leagues-1.1.220-Leagues-1.1.2 · 20 Leagues-1.1.2.zip·6 May 2022Partly checkedPartly checked: 145 of 146 mods checked (1 not checked yet).Open this file on CurseForgeDownload · Stable · 12.0 MB
    1.18.2·Loader not stated20-Leagues-1.0.120-Leagues-1.0.1 · 20 Leagues-1.0.1.zip·1 May 2022Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 12.0 MB