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    2,061,086 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.641,722 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,671 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.

    Underground Loot Crates

    Mod

    Adds valuable loot crates to the Overworld and the Nether.

    Download

    Files come from CurseForge servers.

    UndergroundCrates_1.16.5-1.3.1.jar

    Released 5 Aug 2021 · 292.1 KB

    Passed: our checks found nothing harmful in this file.

    Download
    E29/ 100
    Security
    Passed
    Privacy
    None found
    Loaders
    Forge
    Minecraft versions
    Up to 1.16.5
    • OverviewE
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.16.5
    • ModpacksIn 53
    • ReleasesLatest Aug 2021
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade E

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • No release in 5.2 years−26 points
    • No file for a Minecraft version most modpacks use−9 points
    • No source code link−7 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      27 points lost0 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5.2 years ago (5 Aug 2021) 0 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.16.5 on Forge. About 5.7 years behind popular modding versions. Latest Minecraft: 26.3. Abandoned: no release for 5.2 years; no file for a popular modding version.0 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.No release in the last 24 months 0 / 6

    • Stability

      Full points15 / 15
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.3 of the 39 modpacks with two or more versions removed it in a later one (8%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      7 points lost0 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.No link on the project page 0 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.Does not apply. Not counted for projects only on CurseForge.

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.83,231 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.5.4 years, 8 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files. See Security
    Total29 / 100

    17.9 of the 61 points that apply = 29 out of 100. The points above are rounded to whole numbers.

    Images

    • New game rules
    • All currently available crates and their respective unique drops
    • Nether loot crate
    • Basic crate which can be found closer to the surface
    • Rare loot crate

    About

    Underground Loot Crates adds discoverable containers to Overworld caves and the Nether, encouraging exploration instead of strip-mining. It includes Basic, Water, Biome, and Special crates: common surface-level Basic crates offer modest supplies, while rarer deep-underground crates can contain ores and have a small chance of yielding diamonds; Nether crates can drop a Molten Pickaxe that sets enemies on fire. Water crates can appear in lakes, rivers, and oceans, and may contain the Anchor, a slow, high-knockback melee weapon; Jungle crates can yield a seed-firing Blowpipe, Frozen crates a snowball-launching Frozen Staff, and Ash crates a fireball-launching Flame Staff. Biome crates replace common Basic crates in challenging areas, with Jungle and Frozen varieties in the Overworld and Ash varieties in the Nether; the Frozen Staff is more powerful in snowy biomes and against Blazes, while the Flame Staff is strongest in the Nether. Rare Iron and Golden Special Crates contain substantial valuable loot and a guaranteed enchanted vanilla weapon or book, while Golden Crates also guarantee a Crate Finder that searches a 33-by-33-by-33 area and glows when the player is near the located coordinates. Crates can also be caught by fishing: surface crates are available, some require deeper water or specific biomes, and Special Crates have a small chance to appear regardless of location. Crate spawn rates and the base fishing chance can be adjusted through game rules, with commands available to change those values in already generated worlds.

    Written from CurseForge . How we write it

    In-game changes

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.16.4 to 1.16.5.

    Does not change the game's code directly.

    Adds:

    • 2 recipes
    • 3 advancements
    • 7 sounds

    Counted from the files of the mod. Content made only in its code is not counted.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Details

    Creator
    Nider001
    License
    Not known
    Downloads
    83K
    Created
    17 Jun 2021
    Official page
    CurseForge

    Security

    No harmful code found

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.16.4 to 1.16.5.

    We checked its files and read their code, without running it.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · Both latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      2 latest files: the newest file for each Minecraft version and loader. None is for a recent Minecraft version, so the answer above is about all of them. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.16.4 to 1.16.5.

    We read its code without running it: it contacts no web address while you play.

    Why we show this: 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 · Both files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of both files, for Minecraft 1.16.4 to 1.16.5. See each file in Releases

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its description, files, images and sounds and found none.

    We have not read its changelogs yet.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    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 · 5 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.
      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.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      17 images read
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Nothing found
      5 sounds read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      99 code files read

    Compatibility

    See all 8 files
    Forge
    1.161.191.2126.1

    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.Nothing
    LanguagesThe languages the text in the game is available in, from the language files of its latest files we checked. A language file can translate only part of the text.English only
    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.

    Modpacks using this project

    Find modpacks with it

    53 modpacks include Underground Loot Crates in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Adventure Life - Legacy75K downloadslast version with it 24 May 2024The Adventures of Halk44K downloadslast version with it 18 Oct 2022Fantasy MC Forge33K downloadslast version with it 22 Jun 2022Dragons and Myths - story about dragons, magic and the Abyss33K downloadslast version with it 9 Oct 2021TNT's PrettyCraft7K downloadslast version with it 4 Dec 2021Myth & Legends 24.7K downloadslast version with it 18 May 2023Senpai's Randomiser Plus2.3K downloadslast version with it 5 May 2022Land Of The Bountiful Wilderness (LOBW)2.1K downloadslast version with it 24 Jan 2022Wu's Council of Laddies2K downloadslast version with it 20 Jul 2021Project Terranova by Flowy1.5K downloadslast version with it 13 Jun 2023
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Underground Loot Crates. Share: how many of the modpacks with Underground Loot Crates also have that mod.

    ProjectTypeShareGrade
    BlueprintAModin 87% of the modpacks with Underground Loot CratesGuard VillagersAModin 72% of the modpacks with Underground Loot CratesBountifulBModin 62% of the modpacks with Underground Loot CratesSpartan ShieldsCModin 62% of the modpacks with Underground Loot CratesDungeon CrawlAModin 62% of the modpacks with Underground Loot CratesRepurposed Structures - Neoforge/ForgeAModin 60% of the modpacks with Underground Loot CratesSpartan WeaponryCModin 60% of the modpacks with Underground Loot CratesValhelsia StructuresCModin 58% of the modpacks with Underground Loot CratesIce and FireCModin 58% of the modpacks with Underground Loot CratesDynamic SurroundingsAModin 57% of the modpacks with Underground Loot Crates
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. None is for a recent Minecraft version. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    Older Minecraft versions
    1.16.5·Forge1.3.11.3.1 · UndergroundCrates_1.16.5-1.3.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.4·Forge1.2.01.2.0 · UndergroundCrates_1.16.5-1.2.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    8 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.16.5The latest file for its Minecraft version and loader·Forge1.3.11.3.1 · UndergroundCrates_1.16.5-1.3.1.jar·5 Aug 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 292.1 KB
    1.16.5·Forge1.3.0-hf11.3.0-hf1 · UndergroundCrates_1.16.5-1.3.0-hf1.jar·30 Jul 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 290.7 KB
    1.16.5·Forge1.3.01.3.0 · UndergroundCrates_1.16.5-1.3.0.jar·29 Jul 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 290.7 KB
    1.16.5·Forge1.2.21.2.2 · UndergroundCrates_1.16.5-1.2.2.jar·28 Jul 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 240.7 KB
    1.16.5·Forge1.2.1-hf11.2.1-hf1 · UndergroundCrates_1.16.5-1.2.1-hf1.jar·3 Jul 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 234.7 KB
    1.16.5·Forge1.2.11.2.1 · UndergroundCrates_1.16.5-1.2.1.jar·2 Jul 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 234.6 KB
    1.16.4 to 1.16.51.16.4 to 1.16.5The latest file for its Minecraft version and loader·Forge1.2.01.2.0 · UndergroundCrates_1.16.5-1.2.0.jar·25 Jun 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 231.5 KB
    1.16.4·Forge1.0.01.0.0 · UndergroundCrates_1.16.4-1.0.0.jar·17 Jun 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 90.8 KB