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    2,054,849 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 2026.269,417 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.

    Back To The Sky

    Modpack

    A SkyBlock Modpack by Spacken0705

    26%Modpack: 26% of its graded mods are A or Bof mods A or B
    • Overview26%
    • SecurityPartly checked
    • Privacy4 send data
    • AIIn 2 mods
    • CompatibilityMinecraft 1.7.10
    • ReleasesLatest Sep 2015

    Download

    Back To The Sky-2.3.zip

    Released 9 Sep 2015 · 9.9 MB

    Partly checked: all 92 mods checked, the pack's own files not yet. See Security

    Download
    OverviewSecurityPrivacyAICompatibilityReleases

    Mod grades

    How grades work

    Modpacks get no grade of their own, so we show the grades of its mods. Of its 85 graded mods, 22 are graded A or B, 14 C and 49 D to F. Its last update came out 11.1 years ago, for Minecraft 1.7.10. See the mods

    Mods in this pack92 of 92 checked

    The mods of its newest release (Minecraft 1.7.10 · Forge, 9 Sep 2015). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ModGradeSecurity
    JourneyMapMod · 371.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Storage DrawersMod · 246M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Applied Energistics 2Mod · 236M downloadsAPassedPassed: our checks found nothing harmful in the latest files.MantleMod · 231.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Iron ChestsMod · 224.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.CoFH CoreMod · 213.9M downloadsCPassedPassed: our checks found nothing harmful in the latest files.The Twilight ForestMod · 210.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Tinkers' ConstructMod · 199.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.McJtyLibMod · 188.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.MmmMmmMmmMmmMod · 182.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Thermal FoundationMod · 176.9M downloadsCPassedPassed: our checks found nothing harmful in the latest files.BotaniaMod · 175.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Thermal ExpansionMod · 162.2M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Inventory Tweaks [1.12 only] Mod · 143.4M downloads-PassedPassed: our checks found nothing harmful in the latest files.Ender IOMod · 130M downloadsAPassedPassed: our checks found nothing harmful in the latest files.bdlibMod · 126.1M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Thermal DynamicsMod · 123.3M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Blood MagicMod · 111.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Brandons CoreMod · 109.8M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Draconic EvolutionMod · 109.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Extra UtilitiesMod · 108.9M downloadsDPassedPassed: our checks found nothing harmful in the latest files.BiblioCraftMod · 107.1M downloadsDPassedPassed: our checks found nothing harmful in the latest files.EnderCoreMod · 103.1M downloadsCPassedPassed: our checks found nothing harmful in the latest files.Compact MachinesMod · 99.7M downloadsBPassedPassed: our checks found nothing harmful in the latest files.RFTools (Legacy)Mod · 81.4M downloads-PassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 921234

    7 files not listed: no matching project found.

    Changes since the previous release · No change

    Compared with the release of 4 Sep 2015 for the same platform, Minecraft version and loader. Same mods in both. We do not compare the versions of the mods yet.

    Share graded A or B
    unchanged

    Details

    Creator
    klaperstuhl
    License
    Not known
    Downloads
    2.7K
    Created
    2 Aug 2015
    Official page
    CurseForge

    Security

    No harmful code found in the mods we checked

    We checked all 92 mods, without running them.

    We have not checked the files in the pack itself yet (settings, scripts).

    Why we show this: a modpack installs the files of its mods, and each mod runs on your computer like any program. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: a modpack has no grade of its own, and each mod's result counts in that mod's grade.

    How we checked · All 92 mods checked
    • Its projects
      See what is in this pack
      92 mods
    • Files in the pack itself
      Not checked yet.

    Privacy

    4 mods send something about you

    We read the code of all 92 of its mods, without running it.

    JourneyMapSystem detailsBuildCraftPlayer nameMDECoreUsage dataDeconstruction TableCrash reports

    Why we show this: a modpack runs the code of its mods, and 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 92 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      The Twilight ForestBotaniaExtra UtilitiesBiblioCraftProjectEOpenBlocksForestryThaumcraftRailcraftCodeChicken CoreMinefactory ReloadedEnchanting PlusWR-CBE-UniversalTreecapitatorSteve's AddonsDragonAPI
      16 mods
    • Send nothing
      Their code contacts no web address.
      72 mods

    AI

    AI used in 2 of the 38 mods we checked

    We found an AI tool in them, or their authors declared AI content.

    54 mods are not checked yet.

    Applied Energistics 2Claude CodeBotaniaClaude Code

    Made with AI: not checked yet

    We have not looked for AI tools in the pack itself yet.

    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 · 1 place 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.
    • 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.
      Not read yet
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Not read yet

    Compatibility

    See all 7 files
    Forge
    1.71.101.151.1926.1

    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.92 projects, listed in the Overview tab.
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.No file yet for any of the last 6 Minecraft versions.

    7 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.7.10·Forge2.32.3 · Back To The Sky-2.3.zip·9 Sep 2015Partly checkedPartly checked: all 92 mods checked, the pack's own files not yet.Open this file on CurseForgeDownload · Stable · 9.9 MB
    1.7.10·Forge2.22.2 · Back To The Sky-2.2.zip·4 Sep 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 10.4 MB
    1.7.10·Forge2.02.0 · Back To The Sky-2.0.zip·3 Sep 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 10.6 MB
    1.7.10·Forge1.41.4 · Back To The Sky-1.4.zip·17 Aug 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 9.1 MB
    1.7.10·Forge1.21.2 · Back To The Sky-1.2.zip·3 Aug 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 22.4 MB
    1.7.10·Forge1.11.1 · Back To The Sky-1.1.zip·2 Aug 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Stable · 10.0 MB
    1.7.10·Forge1.01.0 · Back To The Sky-1.0.zipBeta·2 Aug 2015Not checkedWe have not checked this file yet.Open this file on CurseForgeDownload · Beta · 18.9 MB