Factory in the Sky 4
ModpackA skyblock adventure with quests, magic, technology, and automation.
- Security
- Partly checked
- Privacy
- 4 send data
- Loaders
- NeoForge
- Minecraft versions
- Minecraft 1.21.1
Mod grades
How grades workModpacks get no grade of their own, so we show the grades of its mods. Of its 238 graded mods, 205 are graded A or B, 31 C and 2 D to F. Its last update came out 6 months ago, for Minecraft 1.21.1. See the mods
Images
About
Factory in the Sky 4 is a quest-guided modded skyblock pack that begins with you on a tree amid the void and builds toward expanding, automating, and exploring your world. Its progression combines technology and magic with plant- and bee-based systems, alchemy, and custom crafting, alongside automation-focused mods such as Mekanism, Industrial Foregoing, and Refined Storage. You can grow saplings and crops by crouching or twerking, travel across the void with flight options such as jetpacks and hang gliders, and ride dragons. Quests provide guided progression, while exploration can lead to dimensions and destinations including the Aether, the Bumblezone, and a void dimension. The pack also includes powerful creative-item crafting and useful additions such as storage, building gadgets, and quality-of-life tools.
Written from CurseForge . How we write it
Content of this pack
The mods of its newest release (Minecraft 1.21.1 · NeoForge, 9 May 2026). Each check result is for the latest files of that mod, which may not be the version in this pack.
Just Enough Items (JEI)Mod · 725.9M downloadsAPassed
Cloth Config APIMod · 570.7M downloadsAPassed
Mouse TweaksMod · 548.9M downloadsAPassed
AppleSkinMod · 520.1M downloadsAPassed
GeckolibMod · 501.3M downloadsAPassed
BookshelfMod · 473.4M downloadsAPassed
Architectury APIMod · 460.8M downloadsAPassed
ControllingMod · 441.9M downloadsAPassed
Entity CullingMod · 427.6M downloadsAPassed
ClumpsMod · 420.8M downloadsAPassed
SodiumMod · 414.7M downloadsAPassed
Jade 🔍Mod · 354.6M downloadsAPassed
WaystonesMod · 354.2M downloadsAPassed
Curios APIMod · 350.3M downloadsAPassed
CollectiveMod · 343.1M downloadsAPassed
PatchouliMod · 341.5M downloadsAPassed
PlaceboMod · 340.8M downloadsAPassed
Iris ShadersMod · 339.5M downloadsAPassed
Moonlight LibMod · 338.7M downloadsAPassed
Enchantment DescriptionsMod · 337.8M downloadsAPassed
ModernFixMod · 335.9M downloadsAPassed
Nature's CompassMod · 332.8M downloadsAPassed
ImmediatelyFastMod · 331.7M downloadsAPassed
BalmMod · 330.4M downloadsAPassed
FancyMenuMod · 299.8M downloadsAPassedChanges since the previous release
Compared with the release of 8 Nov 2025 for the same platform, Minecraft version and loader. We do not compare the versions of the projects yet.
- Added
Configurable
BaguetteLib
Dimension Expansion
Accessories Compatibility Layer
Simple Burnout Torch
Construction Sticks Grips
Chisel Modern
Refined Construction Sticks
ConnectedTexturesModCurios API
Haven Growth- Removed
[Deprecated] Curios Compat Layer for Accessories, 
Re-Imagine-Tom-Simple-Storage and 
Squat Grow- Share graded A or B
- unchanged
Details
- Creator
- MuggleOrWizard
- License
- All rights reserved
- Downloads
- 19K
- Created
- 26 Apr 2025
- Official page
- CurseForge
Security
No harmful code found in the projects we checked
We checked 235 of its 238 projects and the files in the pack itself, without running them.
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
- Its projects238 projects
- Not checked yet3 projects
- Files in the pack itself683 settings files, 36 scripts, 9 other files, no mod jars.
Privacy
4 mods send something about you
We read the code of all 232 of its mods, without running it.
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
- Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.20 mods
- Crash reports or usage dataTheir author declares crash reports or usage data on Modrinth, or such a service is named in their files. Reading their code did not show it.1 mod
- Send nothingTheir code contacts no web address.208 mods
AI
AI named in 3 of the 189 mods we checked
We found an AI tool named in them, or their authors declare AI content.
15 other mods show AI use only from after this release (9 May 2026), so it does not apply to the versions in this pack.
43 mods are not checked yet.
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
- 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 descriptionChangelogs not read yet
- Its filesCredits and texts in the files you download that name an AI tool.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 23 filesPoint at or tap a version to see its loaders.