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    2,046,932 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 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 24 Oct 2026.269,480 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    Project Atmosphere: Realistic Climate & Weather

    Mod

    Weather and clouds change naturally with the climate around you.

    B84/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AIAI images
    • CompatibilityUp to 1.21.1
    • ModpacksIn 89
    • ReleasesLatest 15 Sep

    Download

    NeoForge-projectatmosphere-0.9.1.2.jar

    Released 30 Jul 2026 · 13.6 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Simple CloudsCMinecraft 1.21.1 · NeoForge (release 0.7.3)
    • Gabou's LibsAMinecraft 1.21.1 · NeoForge (release 1.9)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Regular releases for Minecraft 1.21.1, a version many recently updated mods still support
    • Public source code
    • Around for years

    Points lost

    • Many modpacks removed it−10 points
    • Under 5 million downloads−1 point
    All 11 criteria
    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.6 weeks ago (15 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.1.21.1 on NeoForge, 1.20.1 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 13 of the last 24 months 6 / 6
    • Stability

      10 points lost12 / 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.31 of the 71 modpacks with two or more versions removed it in a later one (44%) See the 31 modpacks0 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not counted: it puts out releases very often, so quick fixes are normal for it 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

      Full points7 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · xGabou/Project-Atmosphere 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.133,540 3 / 4
    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.18 months, 71 releases 8 / 8
    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total84 / 100

    57.1 of the 68 points that apply = 84 out of 100. The points above are rounded to whole numbers.

    Images

    • The Dark Wall
    • Inside a Cumulonimbus
    • Small Itty Bitties
    • Morning Surprise

    About

    Project Atmosphere replaces chance-based cloud and weather behavior with a dynamic climate simulation, giving the world an evolving atmosphere shaped by temperature, pressure, humidity, wind, and seasonal conditions. It builds a seven-day forecast as a climate baseline, then lets regional atmospheric conditions develop over time, with seasons gradually influencing the live weather rather than resetting it. Clouds form, move, grow, and dissipate according to atmospheric conditions; the mod adds more than 40 cloud types, ranging from near-clear skies to severe formations, with cloud intensity influenced by humidity and pressure. Cyclones develop from low-pressure areas, while persistent weather states allow pressure, wind, humidity, cloud cover, and other conditions to continue evolving across sessions. Rain Cells can form, travel with the wind, decay naturally, increase local rainfall, and consume cloud water. Temperature changes with sunlight exposure, and snow accumulation and melting respond to temperature, sunlight, and biome conditions rather than weather flags alone. The mod works with Simple Clouds and season systems such as Serene Seasons and Ecliptic Seasons, and includes climate mappings for biome mods including Biomes O’ Plenty, Terralith, Regions Unexplored, and TerraFirmaCraft.

    Written from CurseForge and the GitHub README . How we write it

    In-game changes

    Changes the game's code in 8 areas: User interfaceChanges 4 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Server and world logicChanges 3 game code files in this area: the world, commands, scoreboards, saved data and game rules., Rendering and graphicsChanges 2 game code files in this area: drawing mobs, items, particles and textures on screen., World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created., World renderingChanges 1 game code file in this area: drawing the terrain, sky, clouds and weather., Mobs and their behaviorChanges 1 game code file in this area: mobs, animals, villagers, projectiles and how they move and act., Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses. and Game optionsChanges 1 game code file in this area: settings, key bindings and the option screens..

    Adds 9 blocks, 10 items, 15 recipes and 7 sounds.

    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.

    Often used with it

    See all 30
    Better DaysASimple CloudsCSerene SeasonsASerene Seasons PlusBAllTheLeaks (Memory Leak Fix)A

    Details

    Creator
    Gaboouu
    License
    Not known
    Downloads
    134K
    Created
    4 May 2025
    Official page
    CurseForge
    Links
    Source code

    Security

    No harmful code found

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

    What it can do on your computer

    Connects to the internet
    It has code that can go online, for example to check for updates, load skins or send crash reports. No web address is written in its code. See Privacy
    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 3 files in your config folder.

    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 · Both 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.
      2 latest files: the newest file for each Minecraft version and loader. Both are 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
    • Looked for, not foundWe looked for these in the file and did not find them.
      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 · Both 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 both files, for recent Minecraft versions. See each file in Releases

    AI

    AI was used for its images

    The author writes that AI was used.

    ChatGPT is named in the images in its files.

    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.
      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.
      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.
      3 images name ChatGPT in their data, such as dust.png
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Nothing found
      15 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
      946 code files read

    Compatibility

    See all 71 files
    NeoForge
    Forge
    1.201.2126.126.3

    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.
    Simple CloudsCGabou's LibsA
    OptionalProjects it can work with but does not need. The author lists them.
    Distant HorizonsBTough As NailsBPretty RainCTectonicBAurorasCLegendary Survival OverhaulBEcliptic SeasonsADesert StormsAOculusCProject Atmosphere for TFCBIris/Oculus For Simple CloudsCSerene Seasons PlusBTerraFirmaCraftBContinentsACold SweatARainbowsC
    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 1.21.1. Many recently updated mods still support 1.21.1.

    Related projects

    Projects that need Project Atmosphere: Realistic Climate & Weather to work.

    ProjectTypeDownloadsGrade
    Project Atmosphere for TFCBMod3.1K downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    1050
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 0 modpacksMar 2025: 0 modpacksApr 2025: 0 modpacksMay 2025: 0 modpacksJun 2025: 0 modpacksJul 2025: 0 modpacksAug 2025: 1 modpackSep 2025: 7 modpacksOct 2025: 7 modpacksNov 2025: 5 modpacksDec 2025: 9 modpacksJan 2026: 4 modpacksFeb 2026: 7 modpacksMar 2026: 7 modpacksApr 2026: 5 modpacksMay 2026: 8 modpacksJun 2026: 9 modpacksJul 2026: 8 modpacksAug 2026: 9 modpacksSep 2026: 6 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20240
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    Sep 20266

    More modpacks put it in their new versions than a year ago: 8 a month now, 1 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    89 modpacks include Project Atmosphere: Realistic Climate & Weather in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Mystic's Monstrosity84K downloadslast version with it 25 Nov 2025ReligiousPack3-Season269K downloadslast version with it 24 Jan 2026Mystic's Monstrosity - Greedy Edition30K downloadslast version with it 24 Jan 2026Bleach awaken15K downloadslast version with it 8 Oct 2025Penumbralcraft8.9K downloadslast version with it 4 Dec 2025Superb Warfare Pack for me & my bro8.1K downloadslast version with it 25 Oct 2025Prime Piece Dawn5.4K downloadslast version with it 14 Dec 2025Create: Physics And Aeronautics4.8K downloadslast version with it 27 Jun 2026theboysvanilla+3.6K downloadslast version with it 17 Mar 2026ViveCraft Immersive Industrial Colonization2.4K downloadslast version with it 7 Mar 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Project Atmosphere: Realistic Climate & Weather. Share: how many of the modpacks with Project Atmosphere: Realistic Climate & Weather also have that mod.

    ProjectTypeShareGrade
    Better DaysAModin 99% of the modpacks with Project Atmosphere: Realistic Climate & WeatherSimple CloudsCModin 98% of the modpacks with Project Atmosphere: Realistic Climate & WeatherSerene SeasonsAModin 96% of the modpacks with Project Atmosphere: Realistic Climate & WeatherSerene Seasons PlusBModin 85% of the modpacks with Project Atmosphere: Realistic Climate & WeatherAllTheLeaks (Memory Leak Fix)AModin 48% of the modpacks with Project Atmosphere: Realistic Climate & WeatherSodium Dynamic LightsCModin 47% of the modpacks with Project Atmosphere: Realistic Climate & WeatherSophisticated StorageAModin 46% of the modpacks with Project Atmosphere: Realistic Climate & WeatherAmendmentsAModin 44% of the modpacks with Project Atmosphere: Realistic Climate & WeatherMacaw's FurnitureBModin 44% of the modpacks with Project Atmosphere: Realistic Climate & Weatherfix GPU memory leakAModin 42% of the modpacks with Project Atmosphere: Realistic Climate & Weather
    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
    1.21.1·NeoForge0.9.1.20.9.1.2 · NeoForge-projectatmosphere-0.9.1.2.jarSends: None foundRequires:Simple Clouds, Gabou's LibsSimple Clouds, Gabou's LibsPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge0.9.40.9.4 · Forge-projectatmosphere-0.9.4.jarSends: None foundRequires:Gabou's Libs, Simple CloudsGabou's Libs, Simple CloudsPassedOur checks found nothing harmful in this file. Its code was read too.

    71 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge0.9.40.9.4 · Forge-projectatmosphere-0.9.4.jar·15 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 38.0 MB
    1.20.1·Forge0.9.3.10.9.3.1 · Forge-projectatmosphere-0.9.3.1.jar·10 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 29.1 MB
    1.20.1·Forge0.9.30.9.3 · Forge-projectatmosphere-0.9.3.jar·10 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 29.1 MB
    1.20.1·Forge0.9.20.9.2 · Forge-projectatmosphere-0.9.2.jar·3 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 13.9 MB
    1.21.1The latest file for its Minecraft version and loader·NeoForge0.9.1.20.9.1.2 · NeoForge-projectatmosphere-0.9.1.2.jar·30 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 13.6 MB
    1.20.1·Forge0.9.10.9.1 · Forge-projectatmosphere-0.9.1-alpha.jar·16 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 14.3 MB
    1.20.1·Forge0.9.0.1-alpha0.9.0.1-alpha · Forge-projectatmosphere-0.9.0.1-alpha.jarAlpha·13 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Alpha · 14.1 MB
    1.20.1·Forge0.9.0.0-alpha0.9.0.0-alpha · Forge-projectatmosphere-0.9.0.0-alpha.jarAlpha·13 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Alpha · 14.1 MB
    1.21.1·NeoForge0.8.1.00.8.1.0 · NeoForge-projectatmosphere-0.8.1.0.jarBeta·18 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.4 MB
    1.21.1·NeoForge0.8.1.00.8.1.0 · NeoForge-projectatmosphere-pre-0.8.1.0.jarAlpha·17 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Alpha · 12.4 MB
    1.20.1·Forge0.8.1.00.8.1.0 · Forge-projectatmosphere-0.8.0.0.jarBeta·17 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.6 MB
    1.20.1·Forge0.8.0.00.8.0.0 · Forge-Version-projectatmosphere-0.8.0.0.jarBeta·17 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.6 MB
    1.20.1·Forge0.7.1.00.7.1.0 · Forge-Version-projectatmosphere-0.7.1.0.jarBeta·22 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.5 MB
    1.20.1·Forge0.6.0.0-preBeta-2.10.6.0.0-preBeta-2.1 · Forge-Version-projectatmosphere-0.6.0.0-preBeta-2.jarBeta·6 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.4 MB
    1.20.1·Forge0.6.0.0-preBeta-20.6.0.0-preBeta-2 · Forge-Version-projectatmosphere-0.6.0.0-preBeta-2.jarBeta·6 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.4 MB
    1.20.1·Forge0.6.0.0-preBeta-10.6.0.0-preBeta-1 · Forge-Version-projectatmosphere-0.6.0.0-preBeta-1.jarBeta·3 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.4 MB
    1.20.1·Forge0.6.0.0-preBeta0.6.0.0-preBeta · Forge-Version-projectatmosphere-0.6.0.0-preBeta.jarBeta·2 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.4 MB
    1.20.1·Forge0.6.0.0-pre3.20.6.0.0-pre3.2 · Forge-Version-projectatmosphere-0.6.0.0-pre3.2.jarAlpha·25 Nov 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Alpha · 12.3 MB
    1.20.1·Forge0.6.0.0-pre3.10.6.0.0-pre3.1 · Forge-Version-projectatmosphere-0.6.0.0-pre3.1.jarAlpha·25 Nov 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Alpha · 12.3 MB
    1.21.1·NeoForge0.5.5.9.30.5.5.9.3 · projectatmosphere-0.5.5.9.3.jarBeta·25 Nov 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 12.2 MB
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