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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.

    Copperworks

    Mod

    Adds new uses for copper with new items, blocks, and redstone components.

    B80/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.11
    • ModpacksIn 57
    • ReleasesLatest 29 Apr

    Download

    copperworks-3.0.8-1.21.11.jar

    Released 29 Apr 2026 · 479.7 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Public source code and issue tracker

    Points lost

    • No release in 6 months−6 points
    • Releases replaced within 3 days to fix a problem−4 points
    • Some modpacks removed it−2 points
    • Releases in only 6 of the last 24 months−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      5 points lost22 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.6 months ago (29 Apr 2026) 8 / 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.1.21.11 on Fabric, 1.20.1 on Forge. 29% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.21.11. 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 6 of the last 24 months 5 / 6

    • Stability

      6 points lost16 / 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.8 of the 49 modpacks with two or more versions removed it in a later one (16%) See the 8 modpacks8 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.4 of its 16 releases in 2 years needed a quick fix (25%) See the 4 releases3 / 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 points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · marianyp/Copperworks-3 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · marianyp/Copperworks-3 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.190,306 3 / 4

    • Track record

      2 points lost6 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.2 years, 39 releases 6 / 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
    Total80 / 100

    56.8 of the 71 points that apply = 80 out of 100. The points above are rounded to whole numbers.

    Images

    • overview.png
    • rails.png
    • muffler.png
    • sensor.png
    • stasis_chamber.png
    • rocket_boots.png

    About

    Copperworks expands copper’s role in vanilla-style gameplay with new storage, building, transport, utility, and redstone components. Its Copper Barrel is expandable by connecting barrels, adding 24 inventory slots per barrel, while a searchable interface helps manage stored items. Redstone additions include adjustable Copper Clocks that pulse when their timers expire, Batteries that transmit pulses through Copper Rods, and Copper Sensors that detect nearby visible living entities. Relays enable wireless redstone between linked locations, including across dimensions when both are loaded; Radio-paired relays can be triggered remotely, and an Ender Relay can teleport its owner and load a 5-by-5 chunk area while that player is online. For practical building and transport, Copper Scaffolding can be placed in mid-air or fluids, Wrenches rotate blocks, and Wooden and Copper Rails offer minecart speed options, with Copper Rails depleting hunger more slowly than Wooden Rails. Other utilities include Mufflers that silence sounds within a configurable area and Sticky Copper that immobilizes mobs, supporting mob farms or traps. Rocket Boots provide fuel-limited creative-like flight, prevent fall damage, and boost Elytra gliding, while Patina and water potions offer ways to advance copper-block oxidation.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 9 areas: Mobs and their behaviorChanges 5 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Rendering and graphicsChanges 5 game code files in this area: drawing mobs, items, particles and textures on screen., PlayerChanges 4 game code files in this area: your character: movement, abilities, hunger and controls., Inventory and itemsChanges 4 game code files in this area: items, chests and other containers, crafting and enchanting., Blocks and fluidsChanges 2 game code files in this area: how blocks, fluids and redstone work., SoundChanges 1 game code file in this area: playing sounds, music and the sound engine., Networking and multiplayerChanges 1 game code file in this area: connections, the server list and what is sent between your game and a server., World renderingChanges 1 game code file in this area: drawing the terrain, sky, clouds and weather. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    A library packed inside it changes 2 more game code files: Structurized Reborn.

    Adds 15 blocks, 8 items, 3 enchantments, 17 recipes, 21 advancements and 11 sounds.

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

    Replaces 4 of vanilla Minecraft's recipes and 4 advancements.

    Often used with it

    See all 30
    ConnectivityAAttributeFixAGoblin TradersAServer Performance - Smooth Chunk SaveAYUNG's Better Desert TemplesA

    Details

    Creators
    uhmbyee and Myst
    License
    All rights reserved
    Downloads
    190K
    Created
    26 Jul 2023
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues

    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 5 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.
      5 latest files: the newest file for each Minecraft version and loader. The answer above is about the 4 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, images and sounds 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 · 6 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
      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
      53 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
      4 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
      158 code files read

    Compatibility

    See all 39 files
    Fabric
    Forge
    1.191.2126.1

    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 in your game and on the server, or you cannot join.
    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 1.21.11. Many recently updated mods still support 1.21.11.

    Modpacks using this project

    Find modpacks with it

    57 modpacks include Copperworks in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Better MC [FORGE] - BMC421.1M downloadslast version with it 7 Sep 2023[MODIFIED] Cobblemon: PLUS282K downloadslast version with it 12 Oct 2024Mystic's Monstrosity84K downloadslast version with it 8 Jan 2025OritechCraft54K downloadslast version with it 14 Dec 2024Mystic's Monstrosity - Greedy Edition30K downloadslast version with it 14 May 2026Axiom's Adventure Tech Experience14K downloadslast version with it 24 Dec 2023Rogue! Mayhem12K downloadslast version with it 30 Oct 2025brassy's epic RPG8.2K downloadslast version with it 26 Jan 2024Cobblemon Enclave3.6K downloadslast version with it 3 Jan 2026Rusted survival3.3K downloadslast version with it 17 Dec 2023
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    ConnectivityAModin 63% of the modpacks with CopperworksAttributeFixAModin 63% of the modpacks with CopperworksGoblin TradersAModin 61% of the modpacks with CopperworksServer Performance - Smooth Chunk SaveAModin 61% of the modpacks with CopperworksYUNG's Better Desert TemplesAModin 61% of the modpacks with CopperworksYUNG's Better Ocean MonumentsAModin 61% of the modpacks with CopperworksYUNG's Better Nether FortressesAModin 61% of the modpacks with CopperworksDeeper and DarkerAModin 60% of the modpacks with CopperworksYUNG's Better Jungle TemplesAModin 60% of the modpacks with CopperworksYUNG's Better Witch HutsAModin 58% of the modpacks with Copperworks
    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
    1.21.11·Fabric3.0.83.0.8 · copperworks-3.0.8-1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·Fabric3.0.83.0.8 · copperworks-3.0.8-1.21.10.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric2.0.52.0.5 · copperworks-2.0.5.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.5.11.5.1 · (1.20.1) copperworks-beta-1.5.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.19.4·Forge1.5.11.5.1 · (1.19.4) copperworks-beta-1.5.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    39 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.11The latest file for its Minecraft version and loader·Fabric3.0.83.0.8 · copperworks-3.0.8-1.21.11.jar (main file, 1 other file in this version not shown)·29 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.7 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10The latest file for its Minecraft version and loader·Fabric3.0.83.0.8 · copperworks-3.0.8-1.21.10.jar (main file, 1 other file in this version not shown)·29 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.2 KB
    1.21.11·Fabric3.0.73.0.7 · copperworks-3.0.7-1.21.11.jar (main file, 1 other file in this version not shown)·27 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.7 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.73.0.7 · copperworks-3.0.7-1.21.10.jar (main file, 1 other file in this version not shown)·27 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.2 KB
    1.21.11·Fabric3.0.63.0.6 · copperworks-3.0.6-1.21.11.jar (main file, 1 other file in this version not shown)·27 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.5 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.63.0.6 · copperworks-3.0.6-1.21.10.jar (main file, 1 other file in this version not shown)·27 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 479.0 KB
    1.21.11·Fabric3.0.53.0.5 · copperworks-3.0.5-1.21.11.jar (main file, 1 other file in this version not shown)·21 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 478.0 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.53.0.5 · copperworks-3.0.5-1.21.10.jar (main file, 1 other file in this version not shown)·21 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 477.5 KB
    1.21.11·Fabric3.0.43.0.4 · copperworks-3.0.4-1.21.11.jar (main file, 1 other file in this version not shown)·15 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 477.4 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.43.0.4 · copperworks-3.0.4-1.21.10.jar (main file, 1 other file in this version not shown)·15 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 477.0 KB
    1.21.11·Fabric3.0.33.0.3 · copperworks-3.0.3-1.21.11.jar (main file, 1 other file in this version not shown)·7 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 472.9 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.33.0.3 · copperworks-3.0.3-1.21.10.jar (main file, 1 other file in this version not shown)·7 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 472.4 KB
    1.21.11·Fabric3.0.23.0.2 · copperworks-3.0.2-1.21.11.jar (main file, 1 other file in this version not shown)·6 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 471.2 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.23.0.2 · copperworks-3.0.2-1.21.10.jar (main file, 1 other file in this version not shown)·6 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 470.7 KB
    1.21.11·Fabric3.0.13.0.1 · copperworks-3.0.1-1.21.11.jar (main file, 1 other file in this version not shown)·5 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 470.8 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.13.0.1 · copperworks-3.0.1-1.21.10.jar (main file, 1 other file in this version not shown)·5 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 470.3 KB
    1.21.11·Fabric3.0.03.0.0 · copperworks-3.0.0-1.21.11.jar (main file, 1 other file in this version not shown)·30 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 470.8 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Fabric3.0.03.0.0 · copperworks-3.0.0-1.21.10.jar (main file, 1 other file in this version not shown)·30 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 470.3 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric2.0.52.0.5 · copperworks-2.0.5.jar·30 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 703.3 KB
    1.21.1·Fabric2.0.42.0.4 · copperworks-2.0.4.jar·7 Dec 2024PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 703.4 KB
    1 to 20 of 3912

    Quick fixes

    In the last 2 years, 4 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 4 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.4

    • copperworks-3.0.8-1.21.10.jar29 Apr 2026Fixed random crashes caused by Mufflers.
    • copperworks-3.0.7-1.21.10.jar27 Apr 2026Fixed registration of mod stats to avoid mod conflicts…
    • copperworks-3.0.2-1.21.10.jar6 Feb 2026Fixed Bound Relay and Ender Relay not instantly recognizing…
    • copperworks-2.0.2.jar18 Nov 2024Fixed Muffler not muffling ticking sounds like Minecarts or…