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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.

    Deadly World

    Mod

    Makes the world more dangerous to explore and mine in.

    B87/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.20.1
    • ModpacksIn 360
    • ReleasesLatest 15 May

    Download

    deadlyworld-1.20.1-1.2.3.jar

    Released 15 May 2026 · 1.2 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • CrustAMinecraft 1.20.1 · Forge (release 4.17.28)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Public source code
    • Widely used

    Points lost

    • No release in 5 months−5 points
    • Releases in only 4 of the last 24 months−3 points
    • Some modpacks removed it−1 point
    All 11 criteria

    • Maintenance

      6 points lost21 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 months ago (15 May 2026) 9 / 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 4 of the last 24 months 3 / 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.30 of the 264 modpacks with two or more versions removed it in a later one (11%) See the 30 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.1 of its 7 releases in 2 years needed a quick fix (14%) 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

      Full points7 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · FatherToast/DeadlyWorld 7 / 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

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.1,183,608 4 / 4

    • Track record

      2 points lost6 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.13.3 years, 12 releases 6 / 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
    Total87 / 100

    59 of the 68 points that apply = 87 out of 100.

    Images

    • Brutal Spawner
    • Several Features
    • Several Features (Night Vision)
    • Silverfish Nest Dungeon
    • Buried Blocks
    • Sea Mine
    • Floor Trap
    • TNT Floor Trap
    • Hanging Spawner
    • Swarm Spawner
    • Suspiciously Round Sand Deposit
    • Lava Pitfall
    • Definitely Not Infested Ore
    • Floor Trap and Arrow Tower
    • Floor Trap and Arrow Tower (Triggering)
    • Spike Traps

    About

    Deadly World expands vanilla world generation to make underground exploration and mining more dangerous through hazards, surprises, and hostile encounters. Its generated content includes custom spawners and altered dungeon mechanics, lootable and surprise chests, floor and spike traps, pitfalls, projectile-firing towers, silverfish nests and infested blocks, plus buried water and lava pockets. Other hazards include sea mines and sand deposits, and some lava generates as a runny variant that flows like water. Configuration lets players adjust feature frequency and spawner mobs, with settings available for individual dimensions; data packs can extend support to mod-added dimensions. Players can also disable vanilla ore-vein generation and define additional veins using any block type.

    Written from CurseForge and the GitHub README . How we write it

    In-game changes

    Changes the game's code in 3 areas: World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created., Mobs and their behaviorChanges 1 game code file in this area: mobs, animals, villagers, projectiles and how they move and act. and Blocks and fluidsChanges 1 game code file in this area: how blocks, fluids and redstone work..

    Adds 34 blocks, 15 items, 10 mobs, 2 projectiles, 1 other entity, 18 loot tables and 11 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
    Inventory Tweaks [1.12 only]-Pams HarvestCraftDRoguelike DungeonsABetterFpsCExtra UtilitiesD

    Details

    Creator
    FatherToast
    License
    Not known
    Downloads
    1.2M
    Created
    25 Jun 2013
    Official page
    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 3 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.
      3 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
    • 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 that AI was used to make it

    We looked for AI tools in its texts, files, images and code history 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.
      Not on Modrinth.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Nothing found
    • 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
      14 of 24 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
      30 images 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
      372 code files read

    Compatibility

    See all 12 files
    Forge
    1.51.91.141.181.2126.2

    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.
    CrustA
    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 released a new version with this project, each month
    840
    Oct 2024: 3 modpacksNov 2024: 2 modpacksDec 2024: 2 modpacksJan 2025: 0 modpacksFeb 2025: 2 modpacksMar 2025: 2 modpacksApr 2025: 4 modpacksMay 2025: 3 modpacksJun 2025: 6 modpacksJul 2025: 6 modpacksAug 2025: 5 modpacksSep 2025: 2 modpacksOct 2025: 1 modpackNov 2025: 7 modpacksDec 2025: 3 modpacksJan 2026: 4 modpacksFeb 2026: 5 modpacksMar 2026: 3 modpacksApr 2026: 5 modpacksMay 2026: 1 modpackJun 2026: 4 modpacksJul 2026: 6 modpacksAug 2026: 8 modpacksSep 2026: 3 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20243
    Nov 20242
    Dec 20242
    Jan 20250
    Feb 20252
    Mar 20252
    Apr 20254
    May 20253
    Jun 20256
    Jul 20256
    Aug 20255
    Sep 20252
    Oct 20251
    Nov 20257
    Dec 20253
    Jan 20264
    Feb 20265
    Mar 20263
    Apr 20265
    May 20261
    Jun 20264
    Jul 20266
    Aug 20268
    Sep 20263

    360 modpacks include Deadly World in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Magic Farm 3: Harvest238K downloadslast version with it 17 Apr 2016Crundee Craft208K downloadslast version with it 7 Sep 2026TerraFirmaPunk164K downloadslast version with it 8 Jul 2016Euphoric Curiosity162K downloadslast version with it 8 Nov 2019Zombie Apocalypse157K downloadslast version with it 30 May 2016Madpack 4116K downloadslast version with it 3 Jun 2019Post Finem71K downloadslast version with it 23 Mar 2016Refuge65K downloadslast version with it 14 Apr 2019Aliens & Parasites | Ulandoverse52K downloadslast version with it 15 May 2021Atonement: Sins of the Past48K downloadslast version with it 11 Apr 2016
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Inventory Tweaks [1.12 only]-Modin 65% of the modpacks with Deadly WorldPams HarvestCraftDModin 59% of the modpacks with Deadly WorldRoguelike DungeonsAModin 52% of the modpacks with Deadly WorldBetterFpsCModin 52% of the modpacks with Deadly WorldExtra UtilitiesDModin 51% of the modpacks with Deadly WorldChiselCModin 49% of the modpacks with Deadly WorldThermal FoundationCModin 49% of the modpacks with Deadly WorldThermal ExpansionCModin 44% of the modpacks with Deadly WorldBiblioCraftDModin 44% of the modpacks with Deadly WorldAtomicStryker's Infernal MobsAModin 43% of the modpacks with Deadly World
    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·Forge1.2.31.2.3 · deadlyworld-1.20.1-1.2.3.jarSends: None foundRequires:CrustPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.12.2·Not stated1.1.11.1.1 · deadlyworld-1.1.1_for_mc1.12.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.7.10·Not stated1.0.21.0.2 · DeadlyWorld-1.7.10-1.0.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    12 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.2.31.2.3 · deadlyworld-1.20.1-1.2.3.jar·15 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 1.2 MB
    1.20.1·Forge1.2.21.2.2 · deadlyworld-1.20.1-1.2.2.jar·18 Nov 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 1.2 MB
    1.20.1·Forge1.2.11.2.1 · deadlyworld-1.20.1-1.2.1.jar·7 Nov 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.2 MB
    1.20.1·Forge1.2.01.2.0 · deadlyworld-1.20.1-1.2.0.jar·4 Nov 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.2 MB
    1.20.1·Forge1.1.11.1.1 · deadlyworld-1.20.1-1.1.1.jarBeta·15 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 770.8 KB
    1.20.1·Forge1.1.01.1.0 · deadlyworld-1.20.1-1.1.0.jarBeta·14 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 769.8 KB
    1.20.1·Forge1.0.01.0.0 · deadlyworld-1.20.1-1.0.0.jarBeta·13 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 769.8 KB
    1.12.2The latest file for its Minecraft version and loader·Forge1.1.11.1.1 · deadlyworld-1.1.1_for_mc1.12.2.jar·23 May 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 339.9 KB
    1.12.2·Forge1.1.01.1.0 · deadlyworld-1.1.0_for_mc1.12.2.jar·22 May 2021PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 339.9 KB
    1.12.2·Forge1.0.01.0.0 · deadlyworld-1.0.0_for_mc1.12.2.jar·23 Jan 2019PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 45.6 KB
    1.7.10The latest file for its Minecraft version and loader·Forge1.0.21.0.2 · DeadlyWorld-1.7.10-1.0.2.jar·14 Sep 2014PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 93.6 KB
    1.5.2·Forge0.20.2 · DeadlyWorld_0.2_for_MC_1.5.2.zipBeta·25 Jun 2013Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Beta · 60.4 KB

    Quick fixes

    In the last 2 years, 1 release needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.1

    • deadlyworld-1.20.1-1.1.0.jar14 Jun 2025Fixed mixin refmap not being included in the jar (this version…