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    2,055,424 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 2026.269,392 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.

    Reef Redux

    Mod

    Changing up how coral reefs generate.

    D60/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.20.2
    • ModpacksIn 43
    • ReleasesLatest Jan 2025

    Download

    reefredux-1.20.1-1.1.1.jar

    Released 23 Oct 2023 · 58.3 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Public source code and issue tracker

    Points lost

    • No release in 21 months−20 points
    • Releases in only 2 of the last 24 months−5 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      17 points lost10 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.21 months ago (18 Jan 2025) 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.1.20.2 on Forge. 77% of the 516 popular Forge mods updated in the last 6 months also have files for 1.20.1. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 2 of the last 24 months 1 / 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.1 of the 39 modpacks with two or more versions removed it in a later one (3%) 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

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · Coda1552/ReefRedux 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Coda1552/ReefRedux 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.61,766 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.0 years, 7 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the latest file for recent Minecraft versions. See Security
    Total60 / 100

    38.4 of the 64 points that apply = 60 out of 100. The points above are rounded to whole numbers.

    Images

    • Reef
    • Reef
    • Reef

    About

    Reef Redux changes coral reef world generation, replacing the usual flat seabed formations with coral growing on rocky outcrops. Some outcrops include caves or distinctive features such as arches.

    Written from Modrinth . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds no new blocks, items or other content.

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

    Often used with it

    See all 30
    BlueprintAYUNG's Better Ocean MonumentsAYUNG's Better Nether FortressesAYUNG's Better End IslandAAlex's CavesC

    Details

    Creator
    codyhuh
    License
    GNU Lesser General Public License v3.0 only
    Downloads
    62K
    Created
    23 Oct 2023
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found

    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 · All 4 latest files checked, last on 18 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.
      4 latest files: the newest file for each Minecraft version and loader. The answer above is about the one for a recent version. 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
    • 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.
    • 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

    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 · Its one file 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 its one file, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign so far that AI was used to make it

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

    We have not read its changelogs and code history 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.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Not read yet
    • 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
    • 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
      18 code files read

    Compatibility

    See all 7 files
    Forge
    1.191.2126.1

    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.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Its newest file is for 1.20.2. It has no file for the 6 newer Minecraft versions. It also supports 1.20.1, a version many recently updated mods still support.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    1050
    Oct 2024: 2 modpacksNov 2024: 2 modpacksDec 2024: 7 modpacksJan 2025: 10 modpacksFeb 2025: 4 modpacksMar 2025: 5 modpacksApr 2025: 4 modpacksMay 2025: 4 modpacksJun 2025: 4 modpacksJul 2025: 3 modpacksAug 2025: 4 modpacksSep 2025: 3 modpacksOct 2025: 4 modpacksNov 2025: 2 modpacksDec 2025: 2 modpacksJan 2026: 2 modpacksFeb 2026: 1 modpackMar 2026: 1 modpackApr 2026: 2 modpacksMay 2026: 2 modpacksJun 2026: 2 modpacksJul 2026: 4 modpacksAug 2026: 7 modpacksSep 2026: 5 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20242
    Nov 20242
    Dec 20247
    Jan 202510
    Feb 20254
    Mar 20255
    Apr 20254
    May 20254
    Jun 20254
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    Jul 20264
    Aug 20267
    Sep 20265

    43 modpacks include Reef Redux in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Mystic's Monstrosity84K downloadslast version with it 23 Jul 2025Mystic's Monstrosity - Greedy Edition30K downloadslast version with it 18 Oct 2026MCreative SMP8.6K downloadslast version with it 29 May 2025Society: Mystical Ocean6.8K downloadslast version with it 9 Feb 2025PackSMP6.7K downloadslast version with it 10 Jan 2024Reminiscia3.7K downloadslast version with it 19 Dec 2024Mystic's Monstrosity - Avaricious Edition3.1K downloadslast version with it 1 Oct 2026Wild Land3K downloadslast version with it 7 Feb 2026BuildCraft Lite2.6K downloadslast version with it 28 Jun 2025Alfheim | Guns & Monsters2.1K downloadslast version with it 13 Aug 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Reef Redux. Share: how many of the modpacks with Reef Redux also have that mod.

    ProjectTypeShareGrade
    BlueprintAModin 74% of the modpacks with Reef ReduxYUNG's Better Ocean MonumentsAModin 72% of the modpacks with Reef ReduxYUNG's Better Nether FortressesAModin 70% of the modpacks with Reef ReduxYUNG's Better End IslandAModin 60% of the modpacks with Reef ReduxAlex's CavesCModin 58% of the modpacks with Reef ReduxL_Ender's CataclysmBModin 58% of the modpacks with Reef ReduxConnectivityAModin 58% of the modpacks with Reef ReduxAmendmentsAModin 58% of the modpacks with Reef ReduxUpgrade AquaticAModin 56% of the modpacks with Reef ReduxEnderman OverhaulBModin 56% of the modpacks with Reef Redux
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    1.20.1·Forge1.3.01.3.0 · reefredux-1.3.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.20.2·Forge1.1.11.1.1 · reefredux-1.20.1-1.1.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.2·Forge1.0.01.0.0 · reefredux-1.20.1-1.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2·Forge1.1.01.1.0 · reefredux-1.19.2-1.1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    7 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.01.3.0 · reefredux-1.3.0.jar (main file)·18 Jan 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 60.0 KB
    1.20.1·Forge1.2.01.2.0 · reefredux-1.20.1-1.2.0.jar (main file)·9 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 60.3 KB
    1.20.1 to 1.20.21.20.1 to 1.20.2The latest file for its Minecraft version and loader·Forge1.1.11.1.1 · reefredux-1.20.1-1.1.1.jar (first file)·23 Oct 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 58.3 KB
    1.19.2The latest file for its Minecraft version and loader·Forge1.1.01.1.0 · reefredux-1.19.2-1.1.0.jar (first file)·23 Oct 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 57.9 KB
    1.20.1·Forge1.1.01.1.0 · reefredux-1.20.1-1.1.0.jar·23 Oct 2023Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.19.2·Forge1.0.01.0.0 · reefredux-1.19.2-1.0.0.jar (first file)·23 Oct 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 57.1 KB
    1.20.1 to 1.20.21.20.1 to 1.20.2The latest file for its Minecraft version and loader·Forge1.0.01.0.0 · reefredux-1.20.1-1.0.0.jar (first file)·23 Oct 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 57.2 KB