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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.

    BlocksExpansion

    Mod

    A building block expansion.

    D54/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.4
    • ModpacksIn 14
    • ReleasesLatest Dec 2024

    Download

    block.expansion-1.3.1+1.21.4.jar

    Released 14 Dec 2024 · 641.5 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 1.21.4 · Fabric (release 0.119.4)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • No release in 22 months−20 points
    • Releases in only 1 of the last 24 months−5 points
    • No public issue tracker−3 points
    • Under 5 million downloads−2 points
    All 11 criteria

    • Maintenance

      17 points lost10 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.22 months ago (14 Dec 2024) 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.1.21.4 on Fabric. 16% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.21.4. 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 1 of the last 24 months 1 / 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.None of the 10 modpacks with two or more versions removed it 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · kenderDev/blocksExpasion 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

      2 points lost2 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.24,871 2 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.1 years, 16 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 3 latest files for recent Minecraft versions. See Security
    Total54 / 100

    34.4 of the 64 points that apply = 54 out of 100. The points above are rounded to whole numbers.

    Images

    • blocks
    • blocks

    About

    BlocksExpansion adds more than 50 building blocks to broaden Minecraft base decoration, with designs intended to fit a vanilla-style aesthetic and mix with blocks from other mods. Its distinctive variants include stone and nether brick pillars, a red nether brick fence, cracked and chiseled red nether bricks, prismarine bricks and end stone bricks, plus cracked and chiseled purpur blocks. For granite, diorite, andesite, basalt, tuff, calcite, dripstone, obsidian, and amethyst, it provides brick blocks with stairs, slabs, walls, cracked and chiseled forms, and pillars. It also adds cut coal, iron, gold, redstone, emerald, lapis, diamond, and netherite blocks, each with stair and slab variants.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 2 areas: Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    Adds 101 blocks and 217 recipes.

    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.

    Details

    Creator
    k3nder
    License
    GNU Affero General Public License v3.0 only
    Downloads
    25K
    Created
    7 Sep 2023
    Official page
    Modrinth
    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 12 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.
      12 latest files: the newest file for each Minecraft version and loader. The answer above is about the 3 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 3 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 3 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
      16 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
      74 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
      4 code files read

    Compatibility

    See all 16 files
    Fabric
    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.
    Fabric APIA
    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 1.21.4. Many recently updated mods still support 1.21.4.

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Build Stuff2.8K downloadslast version with it 5 Jun 2024The variety pack2.3K downloadslast version with it 19 Jun 2024Stitched (Quilt / Fabric)2.1K downloadslast version with it 7 Jan 2024Handyfon's Cobblemon1.7K downloadslast version with it 11 Jun 2024Let's Go Gambling!!!1.3K downloadslast version with it 14 Jan 2025Better Discoveries926 downloadslast version with it 12 Mar 2025Shattered Hearts810 downloadslast version with it 9 Apr 2024Lifetime Server773 downloadslast version with it 12 Dec 2025Choo Choo City635 downloadslast version with it 4 Feb 2026Telidos502 downloadslast version with it 26 May 2024
    1 to 10 of 1412

    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
    1.21.4·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.4.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.1.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric1.21.2 · BocksExtension-FABRIC-1.2.0.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.21.3·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.3.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.2·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.2.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.6·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.20.6.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.5·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.20.5.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.4·Fabric1.3.11.3.1 · block.expansion-1.3.1.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.3·Fabric1.2.61.2.6 · block expansion-1.2.6-1.20.3.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1212

    16 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.4The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.4.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 641.5 KB
    1.21.3The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.3.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 641.5 KB
    1.21.2The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.2.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 641.5 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.1.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 636.8 KB
    1.21The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.21.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 636.8 KB
    1.20.6The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.20.6.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 636.8 KB
    1.20.5The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1+1.20.5.jar (main file)·14 Dec 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 636.8 KB
    1.20.4The latest file for its Minecraft version and loader·Fabric1.3.11.3.1 · block.expansion-1.3.1.jar (main file)·9 Jan 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 655.6 KB
    1.19.2The latest file for its Minecraft version and loader·Fabric1.2.61.2.6 · block expansion-1.2.6-1.19.2.jar (main file)Beta·7 Jan 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Beta · 654.7 KB
    1.20.4The latest file for its Minecraft version and loader·Fabric1.2.51.2.5 · block expansion-1.2.6-1.20.4.jar (main file)·7 Jan 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 656.3 KB
    1.20.3The latest file for its Minecraft version and loader·Fabric1.2.61.2.6 · block expansion-1.2.6-1.20.3.jar (main file)·7 Jan 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 656.3 KB
    1.20.2The latest file for its Minecraft version and loader·Fabric1.2.51.2.5 · block expansion-1.2.6-1.20.2.jar (main file)·7 Jan 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 656.3 KB
    1.20.2·Fabric1.2.51.2.5 · block.expansion-1.2.5.jar (main file)·24 Dec 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 655.8 KB
    1.20.2·Fabric1.2.01.2.0 · BlocksExpansion-FABRIC-1.20.2-1.2.0.jar (main file)·13 Dec 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 655.4 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric1.21.2 · BocksExtension-FABRIC-1.2.0.jar (main file)·7 Sep 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 656.4 KB
    1.20.1·Fabric1.0.01.0.0 · blockExapnsion-FABRIC-1.0.0.jar (main file)Alpha·7 Sep 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 729.5 KB