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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.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    Caerula Arbor

    Mod

    Ocean creatures invade the world, bringing new enemies to fight.

    A90/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNot read yet
    • AINone found
    • CompatibilityMinecraft 1.20.1
    • ModpacksIn 6
    • ReleasesLatest 24 Oct

    Download

    caerula_arbor-0.13.0-forge-1.20.1.jar

    Released 24 Oct 2026 · 47.6 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • GeckolibAMinecraft 1.20.1 · Forge (release 4.8.4)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for Minecraft 1.20.1, a version many recently updated mods still support
    • Around for years

    Points lost

    • Releases replaced within 3 days to fix a problem−3 points
    • No public issue tracker−3 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.Today (24 Oct 2026) 12 / 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.1.20.1 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 19 of the last 24 months 6 / 6

    • Stability

      3 points lost19 / 22
      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.None of the 5 modpacks with two or more versions removed it 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.30 of its 122 releases in 2 years needed a quick fix (25%) See the 30 releases4 / 7
      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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · Apocalypse114/CaerulaArbor 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.321,525 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.18 months, 120 releases 8 / 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
    Total90 / 100

    63.9 of the 71 points that apply = 90 out of 100. The points above are rounded to whole numbers.

    Images

    • Unicellular Predator underwater
    • Abundant seaborns getting together
    • New look of netehrsea brand
    • poster.png

    About

    Caerula Arbor adapts the Seaborn, an ocean-born species from Arknights, into Minecraft as a hostile force that invades the Overworld and threatens its inhabitants. Seaborn can cooperate and evolve over time, gaining health, attack strength, skills, and numbers, so their growing threat is something players must keep pace with. Players can fight them for tissues and materials to craft equipment infused with ocean power, and can eat Seaborn meat, though eating it without proper treatment can have harmful consequences. The mod also includes mysterious collectibles that can affect player attributes and game progress, although ways to obtain most of them are still being developed.

    Written from Modrinth . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds 166 blocks, 603 items, 143 mobs, 2 boats, 8 projectiles, 21 other entities, 1 biome, 47 structures, 13 enchantments, 443 recipes, 107 advancements, 171 loot tables and 233 sounds.

    Counted from the names and data files in the mod, so the list may not be complete.

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

    Details

    Creators
    Apocalypse and Pigeon0129
    License
    GNU General Public License v3.0 only
    Downloads
    322K
    Created
    26 Apr 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Discord

    Security

    No harmful code found

    We checked its files without running them.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 1 file in your config folder.

    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 · The latest file checked, last on 24 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.
      1 latest file, 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.
      Not read 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.
    • 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 have not read its code yet

    The file checks found no code that connects to the internet.

    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 · Code not read yet
    • 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.
      None yet. 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 texts, files, images and sounds and found none.

    We have not read its 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 · 6 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
      39 of 40 changelogs read
    • 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
      1,879 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
      40 of 325 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
      3,000 code files read

    Compatibility

    See all 120 files
    Forge
    1.201.2126.126.3

    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.
    GeckolibA
    OptionalProjects it can work with but does not need. The author lists them.
    PatchouliA
    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.It has no file for Minecraft versions newer than 1.20.1. Many recently updated mods still support 1.20.1.

    Related projects

    Projects that need Caerula Arbor to work.

    ProjectTypeDownloadsGrade
    Life ContractBMod925 downloadsCaerula Arbor Crop CompatibilityCMod103 downloads

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Caerula Arbor in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Beyond Ocean137K downloadslast version with it 15 Oct 2026Arknights The Great Tide1.6K downloadslast version with it 3 Sep 2026Arknights Lucky Block774 downloadslast version with it 18 Sep 2026The Seas Revenge318 downloadslast version with it 6 Aug 2026God's Damnation68 downloadslast version with it 19 Sep 2026Undertides5 downloadslast version with it 2 Oct 2026

    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·Forge0.13.00.13.0 · caerula_arbor-0.13.0-forge-1.20.1.jarSends: Not read yetRequires:GeckolibPassedOur checks found nothing harmful in this file.

    120 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge0.13.00.13.0 · caerula_arbor-0.13.0-forge-1.20.1.jar (main file)·24 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 47.6 MB
    1.20.1·Forge0.12.7.40.12.7.4 · caerula_arbor-0.12.7.4-forge-1.20.1.jar (main file)Beta·18 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 47.6 MB
    1.20.1·Forge0.12.7.20.12.7.2 · caerula_arbor-0.12.7.2-forge-1.20.1.jar (main file)·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 47.2 MB
    1.20.1·Forge0.12.7.10.12.7.1 · caerula_arbor-0.12.7.1-forge-1.20.1.jar (main file)Beta·4 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 47.2 MB
    1.20.1·Forge0.12.70.12.7 · caerula_arbor-0.12.7-forge-1.20.1.jar (main file)·2 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 47.2 MB
    1.20.1·Forge0.12.6.70.12.6.7 · caerula_arbor-0.12.6.7-forge-1.20.1.jar (main file)Beta·29 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 47.0 MB
    1.20.1·Forge0.12.6.40.12.6.4 · caerula_arbor-0.12.6.4-forge-1.20.1.jar (main file)Beta·26 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.3 MB
    1.20.1·Forge0.12.6.30.12.6.3 · caerula_arbor-0.12.6.3-forge-1.20.1.jar (main file)Beta·25 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.3 MB
    1.20.1·Forge0.12.60.12.6 · caerula_arbor-0.12.6-forge-1.20.1.jar (main file)·20 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 45.2 MB
    1.20.1·Forge0.12.5.50.12.5.5 · caerula_arbor-0.12.5.5-forge-1.20.1.jar (main file)Beta·16 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.2 MB
    1.20.1·Forge0.12.5.40.12.5.4 · caerula_arbor-0.12.5.4-forge-1.20.1.jar (main file)Beta·12 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.2 MB
    1.20.1·Forge0.12.5.20.12.5.2 · caerula_arbor-0.12.5.2-forge-1.20.1.jar (main file)Beta·7 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.2 MB
    1.20.1·Forge0.12.5.10.12.5.1 · caerula_arbor-0.12.5.1-forge-1.20.1.jar (main file)Beta·6 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Beta · 45.2 MB
    1.20.1·Forge0.12.50.12.5 · caerula_arbor-0.12.5-forge-1.20.1.jar (main file)·5 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 45.2 MB
    1.20.1·Forge0.12.4.30.12.4.3 · caerula_arbor-0.12.4.3-forge-1.20.1.jar (main file)Beta·2 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 45.0 MB
    1.20.1·Forge0.12.4.20.12.4.2 · caerula_arbor-0.12.4.2-forge-1.20.1.jar (main file)·1 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 45.0 MB
    1.20.1·Forge0.12.4.10.12.4.1 · caerula_arbor-0.12.4.1-forge-1.20.1.jar (main file)·31 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 43.2 MB
    1.20.1·Forge0.12.40.12.4 · caerula_arbor-0.12.4-forge-1.20.1.jar (main file)·29 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 43.2 MB
    1.20.1·Forge0.12.3.30.12.3.3 · caerula_arbor-0.12.3.3-forge-1.20.1.jar (main file)Beta·25 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 42.8 MB
    1.20.1·Forge0.12.3.10.12.3.1 · caerula_arbor-0.12.3.1-forge-1.20.1.jar (main file)Beta·24 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 40.1 MB
    1 to 20 of 120123456

    Quick fixes

    In the last 2 years, 30 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 3 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.30

    • 0.12.7.14 Oct 2026Fix a bug that effect of Chitinous Knife doesn't functions…
    • 0.12.6.426 Sep 2026…ways to summon oceanized wandering trader; - Fix evolved players cannot gain Living barrier through attack…
    • 0.12.620 Sep 2026Bug Fixed - Allotopic Guardian still attack oceanized player…
    • 0.12.5.27 Sep 2026Fix crash caused by allotopic guardian under some eoccasion…
    • 0.12.5.16 Sep 2026Fix game frozen caused by some mod projectiles…
    • 0.12.55 Sep 2026Bug Fixed - Failed team sync when some mobs died and spawn…
    • 0.12.4.21 Sep 2026Add entries in Patchouli Book; - Fix and optimize of oceanized hoglin and oceanized piglin…
    • 0.12.4.131 Aug 2026Fix crash when starting game.
    • 0.12.2.214 Aug 2026Fix the wrong summon speed of Nourished Pool of Creation…
    • 0.12.1.331 Jul 2026Fix a bug that Vengetide Raid cannot be summon if too far…
    • 0.12.0.123 Jul 2026Fix wrong flying speed of rocket from Iberia Monstrosity…
    • 0.12.0.1.a23 Jul 2026Fix render error with shaders.
    • 0.11.622 May 2026…Please download the rebuild onr instead. Bug Fixed - Crash caused by drinking Isharmla Milk Tea; - Tribunal…
    • 0.11.5.215 May 2026…Add new loot for Oceanized Piglin Brute; - Fix damage lose under some occassion…
    • 0.10.4.5_hotfix12 Feb 2026…found that null == null returns true so I fix a bug
    • 0.10.33 Feb 2026…Bugfixed - Tranquil Sea Etheriality causing crash in some situations (probably not completely fixed yet)…
    • 0.10.020 Jan 2026Bug fixed - Unlimited use of Saint Treaty; - Player cannot jump…
    • 0.9.10.112 Jan 2026Fix some bugs: > Wrong animation when pulling chitin bow…
    • 0.9.1011 Jan 2026…old bug that mod pets won't follow the owner; - Fix the movement speed for marine seaborns; - Wrong behaviour…
    • 0.9.9.710 Jan 2026Fix a bug that pet won't follow the owner; - Complete th…
    • 0.9.920 Dec 2025Bug fixed - Misbehaviour of nethersea leave in some cases…
    • 0.9.8.612 Dec 2025Fix a bug that enchantment Nethersea Walker won't func; - Add…
    • 0.9.8.410 Dec 2025Add a super srtong mob!!!!! - Fix a bug that some mobs cannot receive attribute boost from…
    • 0.9.8.28 Dec 2025Fix a bug that some of the new mobs will spawn everywhere…
    • 0.9.7.329 Nov 2025Fix some bugs: > - A advanment that is mistakenly…
    • 0.9.7.126 Nov 2025Fix a bug that Gladiia's Whirl will spawn everywhere
    • 0.9.5.712 Nov 2025Fix the wrong behaviour of Oceanized Warden(and Wardenis)…
    • 0.8.10.123 Sep 2025Fix a bug that Oceanized Wither will kill himself
    • 0.8.8_hotfix3 Sep 2025Fix a bug that with Aggressive Mode on,seaborns may attack…
    • 0.8.116 Jul 2025A hotfix for the former version.