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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.

    MobSpawnController

    Mod

    Control which mobs spawn and change their attributes.

    B83/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 30
    • ReleasesLatest 3 Oct

    Download

    mobspawncontroller-fabric-1.21.1-1.3.0.jar

    Released 3 Oct 2026 · 293.1 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for Minecraft 1.21.1, a version many recently updated mods still support

    Points lost

    • First release only 5 months ago−5 points
    • No public issue tracker−3 points
    • Some modpacks removed it−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      Full points21 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.3 weeks ago (3 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.1.21.1 on Fabric and NeoForge, 1.20.1 on Forge. 53% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.21.1. 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.Does not apply. The project is under 6 months old.

    • Stability

      1 point lost14 / 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 26 modpacks with two or more versions removed it in a later one (12%) See the 3 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Does not apply. The project is under 6 months old.
      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 · taisuiyileba/MobSpawnController 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.39,858 3 / 4

    • Track record

      5 points lost3 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.5 months, 33 releases 3 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 4 latest files for recent Minecraft versions. See Security
    Total83 / 100

    48.4 of the 58 points that apply = 83 out of 100. The points above are rounded to whole numbers.

    Images

    • Screenshot 1 of MobSpawnController
    • Screenshot 2 of MobSpawnController
    • Screenshot 3 of MobSpawnController
    • Screenshot 4 of MobSpawnController

    About

    MobSpawnController gives server administrators fine-grained control over mob spawning and attributes through commands or an in-game editor. Spawn rules can enable or disable any registered mob by spawn type, such as natural spawning, spawners, breeding, or events, so one source of spawns can be blocked while others remain allowed. Natural spawn conditions can be tailored by chance, height, light, time and world day, moon phase, player distance, difficulty, weather, dimensions, biomes, structures, blocks, fluids, and nearby mob limits, among other factors. The mod can also change per-mob attributes such as health, damage, speed, armor, and knockback resistance, using fixed values or percentage-based adjustments. Its GUI provides a searchable mob list with 3D previews, filters, and editors for spawn rules, natural conditions, and attributes; commands can toggle rules, list current settings, or clear them. Rules are saved per world and work on a dedicated server without the client-installed GUI, while optional Serene Seasons integration lets natural spawn rules depend on sub-seasons.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 3 areas: Mobs and their behaviorChanges 3 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Server and world logicChanges 2 game code files in this area: the world, commands, scoreboards, saved data and game rules. and World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created..

    Adds 1 key binding: Open Mob Spawn Controller.

    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
    L_Ender's CataclysmBAttributeFixADeeper and DarkerAMowzie's MobsBBlueprintA

    Details

    Creator
    taisuiyileba
    License
    All rights reserved
    Downloads
    40K
    Created
    2 Jun 2026
    Official pages
    Modrinth , CurseForge
    Links
    Source code

    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 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.
      4 latest files: the newest file for each Minecraft version and loader. All 4 are for recent versions. 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 · All 4 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 all 4 files, 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 texts, files and images 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 · 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
      2 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 image 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
      90 code files read

    Compatibility

    See all 33 files
    Fabric
    NeoForge
    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 on the server. If your game has it too, you get extra features.
    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 1.21.1. Many recently updated mods still support 1.21.1.

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    MC Dungeons - Reforged16K downloadslast version with it 7 Jun 2026The Warborn Realms11K downloadslast version with it 12 Oct 2026Midnight Apocalypse [FORGE]8.4K downloadslast version with it 4 Jul 2026Project X Heroes (Palladium)7.5K downloadslast version with it 7 Oct 2026Fiction Friction Gaming4.8K downloadslast version with it 19 Oct 2026Furtastic (a changed adventure)2.5K downloadslast version with it 12 Jul 2026MC Dungeons: Remastered1.9K downloadslast version with it 26 Jun 2026Viriatus1.2K downloadslast version with it 20 Oct 2026The Adventure of 1000 - Hunters of Evil1.1K downloadslast version with it 28 Jun 2026Casino Block837 downloadslast version with it 6 Aug 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    L_Ender's CataclysmBModin 63% of the modpacks with MobSpawnControllerAttributeFixAModin 53% of the modpacks with MobSpawnControllerDeeper and DarkerAModin 50% of the modpacks with MobSpawnControllerMowzie's MobsBModin 50% of the modpacks with MobSpawnControllerBlueprintAModin 47% of the modpacks with MobSpawnControllersparkAModin 47% of the modpacks with MobSpawnControllerIron's Spells 'n SpellbooksAModin 43% of the modpacks with MobSpawnControllerBadOptimizationsAModin 43% of the modpacks with MobSpawnControllerWhat Are They Up To (Watut)BModin 43% of the modpacks with MobSpawnControllerAmendmentsAModin 43% of the modpacks with MobSpawnController
    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
    1.21.1·Fabric1.3.01.3.0 · mobspawncontroller-fabric-1.21.1-1.3.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.3.01.3.0 · mobspawncontroller-neoforge-1.21.1-1.3.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric1.3.01.3.0 · mobspawncontroller-fabric-1.20.1-1.3.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.3.01.3.0 · mobspawncontroller-forge-1.20.1-1.3.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    33 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.3.01.3.0 · mobspawncontroller-neoforge-1.21.1-1.3.0.jar (main file)·3 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 290.6 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric1.3.01.3.0 · mobspawncontroller-fabric-1.21.1-1.3.0.jar (main file)·3 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 293.1 KB
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.01.3.0 · mobspawncontroller-forge-1.20.1-1.3.0.jar (main file)·3 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 286.3 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric1.3.01.3.0 · mobspawncontroller-fabric-1.20.1-1.3.0.jar (main file)·3 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 286.5 KB
    1.21.1·NeoForge1.2.31.2.3 · mobspawncontroller-neoforge-1.21.1-1.2.3.jar (main file)·7 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 212.1 KB
    1.21.1·Fabric1.2.31.2.3 · mobspawncontroller-fabric-1.21.1-1.2.3.jar (main file)·7 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 214.4 KB
    1.20.1·Forge1.2.31.2.3 · mobspawncontroller-forge-1.20.1-1.2.3.jar (main file)·7 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 210.2 KB
    1.20.1·Fabric1.2.31.2.3 · mobspawncontroller-fabric-1.20.1-1.2.3.jar (main file)·7 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 210.1 KB
    1.20.1·Fabric1.2.21.2.2 · mobspawncontroller-fabric-1.20.1-1.2.2.jar (main file)·27 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 206.8 KB
    1.20.1·Forge1.2.21.2.2 · mobspawncontroller-forge-1.20.1-1.2.2.jar (main file)·27 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 206.9 KB
    1.21.1·Fabric1.2.21.2.2 · mobspawncontroller-fabric-1.21.1-1.2.2.jar (main file)·27 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 211.1 KB
    1.21.1·NeoForge1.2.21.2.2 · mobspawncontroller-neoforge-1.21.1-1.2.2.jar (main file)·27 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 208.9 KB
    1.21.1·NeoForge1.2.11.2.1 · mobspawncontroller-neoforge-1.21.1-1.2.1.jar (main file)·15 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 201.9 KB
    1.21.1·Fabric1.2.11.2.1 · mobspawncontroller-fabric-1.21.1-1.2.1.jar (main file)·15 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 203.8 KB
    1.20.1·Fabric1.2.11.2.1 · mobspawncontroller-fabric-1.20.1-1.2.1.jar (main file)·15 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 199.5 KB
    1.20.1·Forge1.2.11.2.1 · mobspawncontroller-forge-1.20.1-1.2.1.jar (main file)·15 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 199.5 KB
    1.20.1·Forge1.2.01.2.0 · mobspawncontroller-forge-1.20.1-1.2.0.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 159.2 KB
    1.20.1·Fabric1.2.01.2.0 · mobspawncontroller-fabric-1.20.1-1.2.0.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 159.5 KB
    1.21.1·NeoForge1.2.01.2.0 · mobspawncontroller-neoforge-1.21.1-1.2.0.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 162.6 KB
    1.21.1·Fabric1.2.01.2.0 · mobspawncontroller-fabric-1.21.1-1.2.0.jar (main file)·1 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.9 KB
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