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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.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Old Atmosphere

    Mod

    Old Atmosphere brings the look and feel of Minecraft Beta 1.7.3 to modern Minecraft.

    C77/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 26.3
    • ModpacksIn none
    • ReleasesLatest 23 Sep

    Download

    beta-atmosphere-0.4.1+mc26.3.jar

    Released 23 Sep 2026 · 493.8 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for the newest Minecraft versions
    • Stable releases
    • Public source code

    Points lost

    • First release only 1 month ago−8 points
    • Under 5 million downloads−2 points
    All 11 criteria

    • Maintenance

      Full points21 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 weeks ago (23 Sep 2026) 12 / 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.26.3 on Fabric (latest) 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Does not apply. The project is under 6 months old.

    • Stability

      Full points5 / 5
      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.Not measured yet.
      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 · SouperLuigi53/BetaAtmosphere 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

      2 points lost2 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.132 2 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.1 months, 1 release 0 / 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
    Total77 / 100

    34.6 of the 45 points that apply = 77 out of 100. The points above are rounded to whole numbers.

    Images

    • 2026-09-22_21.44.28.png
    • 2026-09-22_15.57.33.png
    • 2026-09-20_15.28.22.png
    • 2026-09-20_16.21.37.png
    • 2026-09-22_15.55.50.png

    In-game changes

    Changes the game's code in 6 areas: Rendering and graphicsChanges 12 game code files in this area: drawing mobs, items, particles and textures on screen., World renderingChanges 5 game code files in this area: drawing the terrain, sky, clouds and weather., Server and world logicChanges 3 game code files in this area: the world, commands, scoreboards, saved data and game rules., World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created., Game data and resourcesChanges 1 game code file in this area: recipes, tags, advancements, language files and other game data. and Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses..

    Adds no new blocks, items or other content.

    Replaces 3 of vanilla Minecraft's sky, weather and particle textures.

    Details

    Creator
    Luigi53
    License
    Not known
    Downloads
    132
    Created
    23 Sep 2026
    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 · The latest file checked, last on 17 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.
      1 latest file, 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 so far that AI was used to make it

    We looked for AI tools in its description, files, images and code history and found none.

    We have not read its changelogs 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.
      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 in the description
      Changelogs not read yet
    • 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
      6 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
      52 code files read

    Compatibility

    See the file in Releases
    Fabric
    26.3

    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

    Modpacks using this project

    No known modpack uses it.

    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
    26.3·Fabric0.4.10.4.1 · beta-atmosphere-0.4.1+mc26.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    1 release

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·Fabric0.4.10.4.1 · beta-atmosphere-0.4.1+mc26.3.jar·23 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 493.8 KB