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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.

    Building Nexus

    Mod

    A mod that adds lots of block to build.

    D60/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.8
    • ModpacksIn 13
    • ReleasesLatest 6 Jan

    Download

    building_nexus-2.1.0.jar

    Released 6 Jan 2026 · 2.1 MB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • No release in 10 months−15 points
    • No source code link−7 points
    • No public issue tracker−3 points
    • Releases in only 5 of the last 24 months−2 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      11 points lost16 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.10 months ago (6 Jan 2026) 3 / 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.1.21.8 on NeoForge, 1.21 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.21.1. 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 5 of the last 24 months 4 / 6

    • Stability

      Full points22 / 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.1 of the 10 modpacks with two or more versions removed it in a later one (10%) 10 / 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.18,704 3 / 4

    • Track record

      6 points lost2 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.20 months, 9 releases 2 / 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
    Total60 / 100

    42.9 of the 71 points that apply = 60 out of 100. The points above are rounded to whole numbers.

    Images

    • 2025-05-13_03.39.12.png
    • 2025-05-13_03.39.06.png

    About

    Building Nexus is a building-focused mod that adds decorative blocks and variants for creating and detailing structures in Minecraft worlds. Its architectural pieces include Greek-style pillars, wood-encased windows, wooden beam supports, patterned glass, and colored lanterns, sea lanterns, and redstone lamps. For varied finishes, it adds white and black marble, with smooth versions, plus black quartz used to craft black marble; other options include colored amethyst blocks and crystals, mossy stone, and stairs, slabs, and chiseled variants for concrete and terracotta. The mod also offers ore-block stairs and slabs and bushes in regular, dried, thick, and thick-dried forms. Mossy rocks generate naturally in plains and snowy plains.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

    Adds 439 blocks and 444 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
    revvantage
    License
    Creative Commons Attribution Share Alike 4.0 International
    Downloads
    19K
    Created
    24 Feb 2025
    Official pages
    Modrinth , CurseForge

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. Only in its files for NeoForge 1.21.1.

    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 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
      2 of 20 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
      234 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
      680 code files read

    Compatibility

    See all 9 files
    NeoForge
    Forge
    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.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.Its newest file is for 1.21.8. It has no file for the 5 newer Minecraft versions. It also supports 1.21.1, a version many recently updated mods still support.

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Mystic's Monstrosity84K downloadslast version with it 29 Aug 2025MineColonies: Dimensional Adventure [Re-Blueprinted]9.3K downloadslast version with it 15 Dec 2025Create-O-Holics S2 Public Server Pack7K downloadslast version with it 11 Aug 2026Create-O-Holics 1 dot 5 2K downloadslast version with it 6 Dec 2025Towns and Trains (abandoned)794 downloadslast version with it 29 Jun 2025Chaos of Titans620 downloadslast version with it 1 Feb 2026Constructa | The Ultimate Building Pack432 downloadslast version with it 1 Jun 2026Niche SMP217 downloadslast version with it 28 Sep 2025Little Engineer100 downloadslast version with it 5 Oct 2026Twitchy's Pak74 downloadslast version with it 11 Jul 2025
    1 to 10 of 1312

    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
    1.21.8·NeoForge2.1.02.1.0 · building_nexus-2.1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.0.12.0.1 · building_nexus-2.0.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·NeoForge1.0.01.0.0 · deco_nexus-1.0.1-neoforge-1.21.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.0.11.0.1 · deco_nexus-1.0.1-forge-1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.21·Forge1.1.11.1.1 · buildingnexus-1.1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    9 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.8The latest file for its Minecraft version and loader·NeoForge2.1.02.1.0 · building_nexus-2.1.0.jar·6 Jan 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.1 MB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.0.12.0.1 · building_nexus-2.0.1.jar·22 May 2025PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.4 MB
    1.21.1·NeoForge2.0.02.0.0 · building_nexus-2.0.0.jar·13 May 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.1 MB
    1.21The latest file for its Minecraft version and loader·Forge1.1.11.1.1 · buildingnexus-1.1.0.jar (main file)·11 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 268.5 KB
    1.21The latest file for its Minecraft version and loader·Forge1.1.11.1.1 · buildingnexus-1.1.0.jar·11 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 268.2 KB
    1.21·Forge1.1.01.1.0 · buildingnexus-1.1.0.jar (main file)·11 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 257.4 KB
    1.20.1The latest file for its Minecraft version and loader·Forge1.0.11.0.1 · deco_nexus-1.0.1-forge-1.20.1.jar (main file)·17 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.20.1 to 1.21.11.20.1 to 1.21.1The latest file for its Minecraft version and loader·NeoForge1.0.01.0.0 · deco_nexus-1.0.1-neoforge-1.21.1.jar (main file)·14 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·NeoForge1.0.01.0.0 · building_nexus-1.0.0-neoforge-1.21.1.jar·24 Feb 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 865.3 KB