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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.

    UnderWorld SMP Modpack

    Modpack

    A heavily modded Minecraft experience focused on underground exploration, survival, and community. Dig deep, build creatively, and thrive in a world where the real adventure starts below the surface.

    81%Modpack: 81% of its graded mods are A or Bof mods A or B
    • Overview81%
    • SecurityPartly checked
    • Privacy5 send data
    • AIIn 4 mods
    • CompatibilityMinecraft 1.21.1
    • ReleasesLatest 4 Jan

    Download

    UnderWorld SMP Modpack 1.1.0.mrpack

    Released 16 Jul 2025 · 3.7 MB

    Not checked: we have not checked this file yet.

    Download
    OverviewSecurityPrivacyAICompatibilityReleases

    Mod grades

    How grades work

    Modpacks get no grade of their own, so we show the grades of its mods. Of its 90 graded mods, 73 are graded A or B, 15 C and 2 D to F. Its last update came out 10 months ago, for Minecraft 1.21.1. See the mods

    Images

    • More Ore Variants
    • Removes the Limit of Cost on the Anvil
    • Underground Beacon
    • Stone Cutter more useful
    • Better Combat
    • Decorations Galore

    Content of this pack90 of 91 checked

    The mods of its newest release (Minecraft 1.21.1 · NeoForge, 4 Jan 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.Architectury APIMod · 460M 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.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.Xaero's World MapMod · 330.9M downloadsBPassedPassed: 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.Sophisticated CoreMod · 235.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Resourceful LibMod · 220.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Sound Physics RemasteredMod · 209.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.3D Skin LayersMod · 202.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Simple Voice ChatMod · 202.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.playerAnimatorMod · 198.9M downloadsBPassedPassed: our checks found nothing harmful in the latest files.Reese's Sodium OptionsMod · 166.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 911234

    1 file not listed: no matching project found.

    Changes since the previous release · 123 removed

    Compared with the release of 26 Oct 2025 for the same platform, Minecraft version and loader. We do not compare the versions of the projects yet.

    Removed
    Cool RainContinuityPrismWorldEditBetter F1 RebornShulker Box TooltipCherished WorldsPolytoneVanilla EvolvedImmediatelyFastIcebergDo a Barrel RollDefault Dark ModeEnchanted Books: Re-coveredSimple MenuBad Apple ShadersEMIffectStewDrinkSoundAdvancement PlaquesEnchantment OutlinesASCII ShaderForgified Fabric APICreate Touch-UpsCreate-PBRMelodyLow ShieldVanilletix ShadersCraftPresenceChat Impressive AnimationInk ShaderInsanity ShaderSolas ShaderChest Search BarBetter Third PersonKonkreteEffect Timer PlusHide HUD in Third-Person ViewSuper Duper VanillaSuperMartijn642's Config LibReimagined | Fresh Animations PatchCreate Style InterfaceCreate Brass CursorsNot Enough AnimationsOmniCoreIconsCreativeCoreParticle EffectsBray & Cyber's Better, Fresher 3D BooksBSL ShadersModel Gap FixResourcifyLow On FireHeld item info(Neoforge port)Hide Experimental WarningVocal VillagersTextileSinus Shader - Sine WaveCreate: Cyber GogglesDingFresh FoodiChunUtilChat Headsdisable front cameraFancyMenuCTR VCRAcid Shaders 1.5Remove Reloading ScreenHatsune Miku Created MinecraftCreate: No box overlayBliss ShadersLegendary TooltipsItem HighlighterNo Resource Pack Warnings forgeGenesisNo Light - No Color!Enhanced Attack IndicatorAmbientSoundsEMIPommel - Held Item ModelsHealth IndicatorsHysteria ShadersLux V1: BrickCraft EditionFastQuit-Forge[BTB] Back To BasicsGlowy Nether PortalsBetter BedsWavey CapesLethal ShadersNotesPhoton ShadersScreenshot ViewerUniLibJade 🔍Cursors ExtendedBitmap Vanilla ShaderCIT ResewnAncient DreamParticular ✨ ReforgedAL's Spiders RevampedDynamic BrightnessFresh Music DiscsKeyBind BundlesExplosive Enhancement: ReforgedAuto ClickerEating AnimationAL's Spiders Revamped x Fresh AnimationsCreate: Liquid FuelDurability TooltipCreate Style Sophisticated BackpacksVisual: Armor TrimsReimaginedMain Menu PanoramasSinytra ConnectorDistant HorizonsCreateful PlaquesB&W ShaderBoatView360Flashlight ShaderWorldEdit ItemsNostalgia ShaderNot Enough CrashesCITResewnNeoPatcherVisuality: Reforged
    Share graded A or B
    unchanged

    Details

    Creator
    GameAdvent Studios
    License
    MIT License
    Downloads
    1.5K
    Created
    24 Apr 2025
    Official page
    Modrinth
    Links
    Discord

    Security

    No harmful code found in the projects we checked

    We checked 90 of its 91 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 · 90 of 91 projects checked
    • Its projects
      See what is in this pack
      91 projects
    • Not checked yet
      WI Zoom
      1 project
    • Files in the pack itself
      Not checked yet.
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.

    Privacy

    5 mods send something about you

    We read the code of 75 of its 76 mods, without running it.

    CollectivePlayer ID[ETF] Entity Texture FeaturesPlayer name3D Skin LayersCrash reportsChunkyUsage dataBetter CloudsUsage data +1

    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 · 75 of 76 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 MapSupplementariesSimple Voice ChatDynamic FPS
      7 mods
    • Send nothing
      Their code contacts no web address.
      63 mods
    • Not read yet
      We have not read their code yet.
      1 mod

    AI

    AI used in 4 of the 75 mods we checked

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

    1 mod is not checked yet.

    Just Enough Items (JEI)Claude CodeIris ShadersdeclaredSupplementariesClaude Code3D Skin LayersCodeRabbit

    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 · 2 places 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.
      No AI content declared.
    • 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
      14 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 14 files
    Fabric
    NeoForge
    1.2126.126.2

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    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.91 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.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1·NeoForge1.2.91.2.9 · UnderWorld SMP v1.2.9.mrpack (main file)·4 Jan 2026Partly checkedPartly checked: 90 of 91 projects checked (1 not checked yet).Open this file on ModrinthDownload · Stable · 25.4 MB
    1.21.1·NeoForge1.3.71.3.7 · UnderWorld SMP [CV] v1.3.7.mrpack (main file)·26 Oct 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 198.3 MB
    1.21.1·NeoForge1.2.91.2.9 · UnderWorld SMP [CV] v1.2.9.mrpack (main file)·26 Oct 2025Partly checkedPartly checked: 90 of 91 projects checked (1 not checked yet).Open this file on ModrinthDownload · Stable · 15.4 MB
    1.21.1·NeoForge1.2.91.2.9 · UnderWorld SMP [SV] 1.2.9.mrpack (main file)·26 Oct 2025Partly checkedPartly checked: 90 of 91 projects checked (1 not checked yet).Open this file on ModrinthDownload · Stable · 361.4 KB
    1.21.1·NeoForge1.3.41.3.4 · UnderWorldSMP [CV] v1.3.4 1.3.4.mrpack (main file)·1 Oct 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 209.9 MB
    1.21.1·NeoForge1.2.71.2.7 · UnderWorldSMP [CV] v1.2.7 1.2.7.mrpack (main file)·1 Oct 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 16.0 MB
    1.21.1·NeoForge1.3.31.3.3 · UnderWorldSMP [CV] v1.3.3 1.3.3.mrpack (main file)·8 Sep 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 208.8 MB
    1.21.1·NeoForge1.3.11.3.1 · UnderWorldSMP [CV] v1.3.1 1.3.1.mrpack (main file)·29 Aug 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 17.1 MB
    1.21.1·NeoForge1.2.61.2.6 · UnderWorldSMP [CV] v1.2.6 1.2.6.mrpack (main file)·25 Aug 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 15.9 MB
    1.21.1·NeoForge1.2.51.2.5 · UnderWorldSMP [CV] v1.2.5 1.2.5.mrpack (main file)·24 Aug 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 15.1 MB
    1.21.1·NeoForge1.2.01.2.0 · UnderWorldSMP Client Version 1.2.0.mrpack (main file)·29 Jul 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 80.8 KB
    1.21.1·NeoForge1.2.01.2.0 · UnderWorldSMP Server Version 1.2.0.mrpack (main file)·28 Jul 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 52.4 KB
    1.21.1·Fabric1.1.01.1.0 · UnderWorld SMP Modpack 1.1.0.mrpack (main file)·16 Jul 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 3.7 MB
    1.21.1·Fabric1.0.01.0.0 · UnderWorld SMP Test #2 1.0.0.mrpack (main file)·24 Apr 2025Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 4.8 MB