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    2,054,198 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 2026.269,438 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.

    Unusual Spawning

    Mod

    An addon for Unusual Prehistory 2 that add natural spawning system for both mob and plants

    D64/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.20.1
    • ModpacksIn 47
    • ReleasesLatest 2 Apr

    Download

    unusual_spawning-1.20.1-1.3.1.jar

    Released 2 Apr 2026 · 196.3 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed

    Points lost

    • No source code link−7 points
    • No release in 7 months−5 points
    • Releases in only 3 of the last 24 months−4 points
    • First release only 11 months ago−4 points
    • No public issue tracker−3 points
    • Some modpacks removed it−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      9 points lost18 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.7 months ago (2 Apr 2026) 7 / 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.Releases in 3 of the last 24 months 2 / 6

    • Stability

      1 point lost21 / 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.4 of the 28 modpacks with two or more versions removed it in a later one (14%) See the 4 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.No quick fix in 2 years 7 / 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

      10 points lost0 / 10
      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.No link to report problems 0 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.37,333 3 / 4

    • Track record

      4 points lost4 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.11 months, 11 releases 4 / 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
    Total64 / 100

    45.6 of the 71 points that apply = 64 out of 100. The points above are rounded to whole numbers.

    Images

    • Lepidodendron towering over swamp biome
    • Talpanas
    • Brachiosaurus on beach
    • Psilopterus in savanna biome
    • Hibbertopterus hanging around the swamp biomes
    • Kentrosaurus on Savanna biome
    • Dunkleosteus hunting on dolphin in Deep Ocean
    • Couple of Telecrex hanging out beside a hill
    • Majungasaurus residing on Jungle biomes
    • Pack of Metriorhynchus swimming between kelps
    • The menacing Megalania roaming around the savanna
    • Forest Plant
    • Desert Plant
    • Gingko trees can be found among other trees in forest biomes

    About

    Unusual Spawning is an addon for Unusual Prehistory 2 that gives its prehistoric animals and plants natural spawns in their corresponding biomes. Animals include land species such as Carnotaurus in savannas and badlands, Dromaeosaurus in plains and forests, and Diplocaulus in swamps, alongside aquatic creatures such as Dunkleosteus and Metriorhynchus in warm oceans and Aegirocassis and Mosasaurus in deep oceans. The addon also places plants in suitable habitats, including Gingko in forests, Lepidodendron and Calamophyton in swamps, Bennettitales in badlands and deserts, and Cooksonia in meadows and plains. It supports biome compatibility with Windswept, Spawn, Environmental, Atmospheric, Nature's Spirit, Biomes O' Plenty, Oh The Biomes We've Gone, and Region Unexplored.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds 4 structures: Mesozoic Fossil, Paleozoic Fossil, Petrified Tree and Tar Pit.

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

    Replaces 8 of vanilla Minecraft's structures.

    Often used with it

    See all 30
    Unusual Prehistory 2BBlueprintAAlex's CavesCSinytra ConnectorAYUNG's Better Desert TemplesA

    Details

    Creator
    MHImoment
    License
    MIT License
    Downloads
    37K
    Created
    8 Dec 2025
    Official pages
    Modrinth , CurseForge
    Links
    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 · 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
    • 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 that AI was used to make it

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

    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.
    • 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
      10 of 17 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
    • 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

    Compatibility

    See all 11 files
    Forge
    Data pack
    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.Install it on the server. Players join without installing it. It also works in singleplayer.
    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.

    Related projects

    Projects made to add things to Unusual Spawning.

    ProjectTypeDownloadsGrade
    Natural Prehistory SpawnsDMod39K downloads

    Modpacks using this project

    Find modpacks with it

    47 modpacks include Unusual Spawning in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Wild Land3K downloadslast version with it 7 Feb 2026SwellCraft2.6K downloadslast version with it 21 Apr 2026Jurassic era2.5K downloadslast version with it 19 Oct 2026EpicFantasy2.2K downloadslast version with it 16 Jan 2026GUNKLY MUNKLY2.2K downloadslast version with it 4 Aug 2026BeyondHorizons1.9K downloadslast version with it 23 Aug 2026Prehistoricraft - The Prehistoric Experience1.5K downloadslast version with it 18 Aug 2026Modernia Horizons1.2K downloadslast version with it 26 Dec 2025Prehistoric Nature1.2K downloadslast version with it 2 Apr 2026Forge & Frontier [FORGE]908 downloadslast version with it 2 Apr 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Unusual Prehistory 2BModin 100% of the modpacks with Unusual SpawningBlueprintAModin 62% of the modpacks with Unusual SpawningAlex's CavesCModin 51% of the modpacks with Unusual SpawningSinytra ConnectorAModin 49% of the modpacks with Unusual SpawningYUNG's Better Desert TemplesAModin 49% of the modpacks with Unusual SpawningFresh AnimationsAResource packin 49% of the modpacks with Unusual SpawningYUNG's Better Nether FortressesAModin 49% of the modpacks with Unusual SpawningYUNG's Better Jungle TemplesAModin 47% of the modpacks with Unusual SpawningL_Ender's CataclysmBModin 47% of the modpacks with Unusual SpawningMowzie's MobsBModin 47% of the modpacks with Unusual Spawning
    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·Forge1.3.11.3.1 · unusual_spawning-1.20.1-1.3.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    11 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20 to 1.20.11.20 to 1.20.1·Data pack1.3.11.3.1 · unusual_spawning 1.3.1.zip (main file)·2 Apr 2026Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 133.1 KB
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.11.3.1 · unusual_spawning-1.20.1-1.3.1.jar (main file)·2 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 196.3 KB
    1.20 to 1.20.11.20 to 1.20.1·Data pack1.31.3 · unusual_spawning 1.3.zip (main file)·2 Apr 2026Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 134.0 KB
    1.20.1·Forge1.31.3 · unusual_spawning-1.20.1-1.3.jar (main file)·2 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 198.1 KB
    1.20 to 1.20.11.20 to 1.20.1·Data pack1.2.11.2.1 · unusual_spawning 1.2.1.zip (main file)·28 Jan 2026Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 66.9 KB
    1.20.1·Forge1.2.11.2.1 · unusual_spawning-1.20.1-1.2.1.jar (main file)·28 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 101.6 KB
    1.20.1·Data pack1.21.2 · unusual_spawning 1.2.zip (main file)·13 Dec 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 60.1 KB
    1.20.1·Forge1.21.2 · unusual_spawning-1.20.1-1.2.jar (main file)·13 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 80.2 KB
    1.20.1·Forge1.11.1 · unusual_spawning-1.20.1.jar·9 Dec 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 58.4 KB
    1.20.1·Data pack1.01.0 · Unusual Spawning 1.0.zip (main file)·8 Dec 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 45.4 KB
    1.20.1·Forge1.01.0 · unusual_spawning-1.20.1-1.0.jar (main file)·8 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 55.1 KB