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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.

    Bad Effects

    Mod

    Make the game harder by adding negative effects to daily life.

    D59/ 100
    • OverviewD
    • SecurityNot checked yet
    • PrivacyNot read yet
    • AINone found
    • CompatibilityUp to 1.20.1
    • ModpacksIn 19
    • ReleasesLatest Jun 2025

    Download

    bad_effects-1.20.1-1.0.1.jar

    Released 27 Jun 2025 · 14.1 KB

    Not checked: its author does not let other sites download this file from CurseForge, so we cannot check it.

    Open on CurseForge
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Stable releases
    • Public source code

    Points lost

    • No release in 16 months−20 points
    • Releases in only 2 of the last 24 months−4 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      16 points lost11 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.16 months ago (27 Jun 2025) 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.Releases in 2 of the last 24 months 2 / 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

      Full points7 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · vietduckg10/BadEffects 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

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.519,334 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.6 years, 19 releases 0 / 8

    • Security

      Not checked
      File checksThis check adds no points. It can only take points away.Not checked: CurseForge does not let other apps download this project's files. B at most. See Security
    Total59 / 100

    35.9 of the 61 points that apply = 59 out of 100. The points above are rounded to whole numbers.

    About

    Bad Effects makes everyday survival hazards and actions more punishing by adding negative status effects and damage to a Minecraft playthrough. Heatstroke can follow prolonged burning in a hot biome, while frostbite follows extended exposure to cold biomes without a nearby heat source; staying above the build limit, drowning, or becoming stuck in a wall can also cause effects such as Nausea, Wither, or Mining Fatigue. Fall damage can cause Slowness and, after a harder fall, Wither; explosion damage can cause Slowness and Nausea, and head impacts while flying can bring brief Blindness and Nausea. Eating food carries a chance of Poison and Nausea, with raw food more likely to cause food poisoning, while magic damage can trigger brief Blindness and cactus or berry-bush damage can cause Poison, with armor reducing or preventing the latter effects. Other hazards include hand injuries from breaking logs, glass, or glass panes bare-handed, with Wither possible from glass, and fatigue from staying awake for more than three days, which worsens if the player remains awake. Killing a villager or iron golem can inflict Bad Luck, which may cause random lightning strikes. The effects can be disabled individually through configuration, and the mod can run server-side without requiring clients to install it.

    Written from CurseForge . How we write it

    Details

    Creator
    DUCVN1882
    License
    Not known
    Downloads
    520K
    Created
    29 Mar 2022
    Official page
    CurseForge
    Links
    Source code

    Security

    Not checked yet

    Its author does not let other sites download its files from CurseForge, so we cannot check them.

    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 · Not checked yet
    • 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. 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. 1 of them is not checked yet. See each file in Releases

    Privacy

    We have not read its code yet

    What it sends is not known yet.

    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

    AI

    No sign so far that AI was used to make it

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

    We have not read its files, images, sounds and code history yet.

    AI in the game: not checked yet

    We have not read its code for AI yet.

    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 · 1 place 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.
      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
      18 of 38 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Not read yet
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Not read yet
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Not read yet
    • 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.
      Not checked for AI yet.

    Compatibility

    See all 19 files
    Forge
    1.161.191.2126.1

    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 Bad Effects in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    HardRock TerraFirmaCraft 3 - extreme realistic survival821K downloadslast version with it 5 Jan 2026Angel Tale : The Midnight49K downloadslast version with it 26 Dec 2025Realistic Modpack - extreme survival2.9K downloadslast version with it 14 Jun 2024Karmia1.4K downloadslast version with it 1 Feb 2023Build and Slash795 downloadslast version with it 16 Apr 2023Walking Among The Dinosaur WATD715 downloadslast version with it 6 Jun 2025YATS - You Are The Sacrifice596 downloadslast version with it 31 May 2024The Classics: Impossible534 downloadslast version with it 2 Jul 2022Angel tale Journey mode492 downloadslast version with it 7 Sep 2025[Deprecated] Hardcore Avouch350 downloadslast version with it 18 Mar 2025
    1 to 10 of 1912

    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·Forge1.0.11.0.1 · bad_effects-1.20.1-1.0.1.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.
    Older Minecraft versions
    1.19.2·Forge1.1.11.1.1 · bad_effects-1.19.2-1.1.1.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.
    1.18.2·Forge1.2.11.2.1 · bad_effects-1.18.2-1.2.1.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.
    1.16.5·Forge1.4.11.4.1 · bad_effects-1.16.5-1.4.1.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.

    19 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.19.2The latest file for its Minecraft version and loader·Forge1.1.11.1.1 · bad_effects-1.19.2-1.1.1.jar·27 Jun 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.18.2The latest file for its Minecraft version and loader·Forge1.2.11.2.1 · bad_effects-1.18.2-1.2.1.jar·27 Jun 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5The latest file for its Minecraft version and loader·Forge1.4.11.4.1 · bad_effects-1.16.5-1.4.1.jar·27 Jun 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1The latest file for its Minecraft version and loader·Forge1.0.11.0.1 · bad_effects-1.20.1-1.0.1.jar·27 Jun 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1·Forge1.01.0 · bad_effects-1.20.1-1.0.jar·25 Feb 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.19.2·Forge1.1.11.1.1 · bad_effects-1.19.2-1.1.1.jar·22 Feb 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.19.2·Forge1.11.1 · bad_effects-1.19.2-1.1.jar·20 Feb 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.18.2·Forge1.21.2 · bad_effects-1.18.2-1.2.jar·20 Feb 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.41.4 · bad_effects-1.16.5-1.4.jar·20 Feb 2025Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.31.3 · bad_effects-1.16.5-1.3.jar·3 Jul 2024Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.18.2·Forge1.1.11.1.1 · bad_effects-1.18.2-1.1.1.jar·3 Jul 2024Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.18.2·Forge1.11.1 · bad_effects-1.18.2-1.1.jar·3 Jul 2024Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.19.2·Forge1.01.0 · bad_effects-1.19.2-1.0.jar·3 Jul 2024Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.18.2·Forge1.01.0 · bad_effects-1.18.2-1.0.jar·3 Apr 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.2-hotfix21.2-hotfix2 · bad_effects-1.16.5-1.2-hotfix2.jar·3 Apr 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.2-hotfix1.2-hotfix · bad_effects-1.16.5-1.2-hotfix.jar·3 Apr 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.21.2 · bad_effects-1.16.5-1.2.jar·3 Apr 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.11.1 · bad_effects-1.16.5-1.1.jar·31 Mar 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.16.5·Forge1.01.0 · bad_effects-1.16.5-1.0.jar·29 Mar 2022Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Open this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.