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    2,053,304 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 2026.269,472 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.

    Arcalis Bosses

    Mod

    Expand your world with new exciting and challenging boss battles.

    E44/ 100
    • OverviewE
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 1.20.1
    • ModpacksIn 26
    • ReleasesLatest May 2024

    Download

    arcalis_bosses-1.0.2.jar

    Released 4 May 2024 · 34.2 MB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade E

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • No release in 2.5 years−26 points
    • No source code link−7 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      18 points lost9 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.2.5 years ago (4 May 2024) 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.1.20.1 on Forge. 15% or more of the popular 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.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.2 of the 14 modpacks with two or more versions removed it in a later one (14%) 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. CurseForge links are not in our data.

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.25,663 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.2.8 years, 3 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
    Total44 / 100

    26.6 of the 61 points that apply = 44 out of 100. The points above are rounded to whole numbers.

    Images

    • Captain Deadbone's Saber
    • Barrel Skeleton
    • Pirate Skeleton
    • Captain Deadbone
    • Cursed Pirate Hat Crafting
    • Bloody Skull Artifact
    • Magic Skeleton
    • The Deathbringer
    • The Deathbringer Summon
    • Cursed Robe Crafting
    • Jack's Hat Artifact
    • Jack Boss
    • Jack Puppet Crafting

    About

    Arcalis Bosses adds three summonable boss encounters, each tied to a special structure and built around distinct abilities and combat tactics. In a woodland castle, players can place Jack’s puppet on an altar to summon the haunted jester, who attacks with poison daggers, dashes, and deceptive tricks: he can vanish behind a Jack-in-the-box or reappear alongside three clones that punish attacks on the wrong target with slowness and blindness. The Deathbringer, a Grim Reaper wielding a netherite scythe, is summoned at a graveyard with a cursed robe and can slash opponents or call magic skeletons from the ground; the robe is crafted from cursed cloth shards obtained by defeating Jack. At a pirate tavern, placing a cursed pirate hat on the table altar summons Captain Deadbone, whose saber strikes and crew summons bring pirate allies and explosive barrel skeletons into the fight. The listed artifacts include Jack’s Hat, Jack Puppet, Cursed Robe, Bloody Skull, Cursed Pirate Hat, and Captain Deadbone’s Saber; cursed cloth shards for the pirate hat can be earned by defeating Jack or the Deathbringer.

    Written from CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds 3 blocks, 18 items, 7 mobs, 4 other entities, 3 structures, 3 recipes, 2 loot tables and 12 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.

    Often used with it

    See all 30
    YUNG's Better Nether FortressesAIron's Spells 'n SpellbooksAYUNG's Better Jungle TemplesAGoblin TradersAYUNG's Better Witch HutsA

    Details

    Creator
    KozuniJacob
    License
    Not known
    Downloads
    26K
    Created
    11 Jan 2024
    Official page
    CurseForge

    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 · The latest file 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.
      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.
      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

    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

    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
      43 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
      12 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
      135 code files read

    Compatibility

    See all 3 files
    Forge
    1.201.2126.126.3

    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
    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.

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Arcalis Bosses in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    RPG 101: The Storm Scourge3.7K downloadslast version with it 9 Dec 2024Reminiscia3.7K downloadslast version with it 30 Jul 2024Weaponized: guns and all3.6K downloadslast version with it 19 Oct 2024Better Than Adventure-Forge3K downloadslast version with it 20 Aug 2024Cave's Depths1.7K downloadslast version with it 17 Oct 2025Arcane Mechanica1.5K downloadslast version with it 28 Apr 2024Eternal of Legends1.4K downloadslast version with it 17 Aug 2026Otter Nonsense623 downloadslast version with it 12 Jul 2024OTHER WORLDS581 downloadslast version with it 30 Jun 2025OtakuCraft Adventures440 downloadslast version with it 15 Oct 2024
    1 to 10 of 26123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    YUNG's Better Nether FortressesAModin 69% of the modpacks with Arcalis BossesIron's Spells 'n SpellbooksAModin 65% of the modpacks with Arcalis BossesYUNG's Better Jungle TemplesAModin 65% of the modpacks with Arcalis BossesGoblin TradersAModin 65% of the modpacks with Arcalis BossesYUNG's Better Witch HutsAModin 65% of the modpacks with Arcalis BossesWhen Dungeons AriseAModin 65% of the modpacks with Arcalis BossesMowzie's MobsBModin 65% of the modpacks with Arcalis BossesYUNG's Better Ocean MonumentsAModin 65% of the modpacks with Arcalis BossesAttributeFixAModin 65% of the modpacks with Arcalis BossesStructure EssentialsAModin 62% of the modpacks with Arcalis Bosses
    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·Forge1.0.21.0.2 · arcalis_bosses-1.0.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    3 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.0.21.0.2 · arcalis_bosses-1.0.2.jar·4 May 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 34.2 MB
    1.20.1·Forge1.0.11.0.1 · arcalis_bosses-1.0.1.jar·30 Apr 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 26.9 MB
    1.20.1·Forge1.0.01.0.0 · arcalis_bosses-1.0.0.jar·11 Jan 2024PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 8.1 MB