High-Altitude Alchemy
Modpackby GalacticSilver
Another ProjectE based skyblock modpack with a few unique twists! Use the powers of EMC to find a way home!
Type
Modpack
CurseForge Downloads
8,999
CurseForge ID
1329149
Last Updated
Apr 12, 2026
Description
High-Altitude Alchemy is a Skyblock Collection modpack (think ATM: To The Sky) based around using ProjectE transmutation to create and manage your resources.
You've been displaced from your reality by a universe fracturing catastrophe and ended up on a small floating island in a vast void. With nothing to your name except your alchemy tools and a small part of the rift that brought you here in the form of a slice of cake you'll have to put your head to the task of finding a way home!
This modpack does not have traditional skyblock resource mods like Ex Nihilo, you'll have to synthesise all of your materials through a unique progression path utilising the mods available to you with your current resources. Once your pockets are full you can start working on a larger goal: Prismatter, this is a progression-check to see that you've dabbled a little in every mod and can automate a wide variety of items.
Beyond prismatter this pack includes several custom multiblocks, custom singleblock machines and many, many custom items that you will create along your way to even greater heights. This pack features an endgame that involves creative items like many other packs but expects you to use them to accomplish your goal of travelling home!
You'll see many familiar mods such as Mekanism, Botania and AE2, as well as some lesser known new faces like Malum and Embers Aetherworks. Dabble in technology and magic to your heart's desire!
(Please note that this pack is not designed to teach you modded minecraft, work things out yourself, it's a puzzle)
Credit for the script that squashes common forge tags for ingots, plates and dusts goes to ZZZank in the High-Altitude Alchemy discord server. This contribution is greatly appreciated!
Discuss the pack with other players in the Discord server: https://discord.gg/b4vnEjuNAP
Compatibility
Mod Loaders
Game Versions
Screenshots
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Contained Mods (154)
Just Enough Items (JEI)
View Items and Recipes
GeckoLib
A 3D animation library for entities, blocks, items, armor, and more!
Cloth Config API (Fabric/Forge/NeoForge)
Config Screen API for Minecraft
Architectury API
An intermediary api aimed to ease developing multiplatform mods.
Mouse Tweaks
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AppleSkin
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Balm
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Bookshelf
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Curios API (Forge/NeoForge)
A flexible and expandable accessory/equipment API for users and developers.
Controlling
Adds a search bar to the Key-Bindings menu
Clumps
Clumps XP orbs together to reduce lag
FancyMenu
Customize Minecraft's menus with ease!
Melody
OpenAL-based library mod for playing background music.
FerriteCore ((Neo)Forge)
Memory usage optimizations
Placebo
A library mod
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FTB Library (NeoForge)
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Patchouli
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Nature's Compass
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Embeddium
A powerful, mod-friendly, FOSS client performance mod for NeoForge
Polymorph (Fabric/Forge/Quilt)
No more recipe conflicts! Adds an option to choose the crafting result if more than one is available.
FTB Teams (NeoForge)
Library for mods that can utilize team progression
SuperMartijn642's Config Lib
Config Lib makes dealing with config files just a bit easier.
SuperMartijn642's Core Lib
SuperMartijn642's Core Lib adds lots of basic implementations that allow for similar code between different Minecraft ve...
FTB Quests (NeoForge)
Questing Mod by FTB
Rhino
A fork of Mozilla's Rhino library, modified for use in mods
Create
Aesthetic Technology that empowers the Player
KubeJS
Edit recipes, add new custom items, script world events, all in JavaScript!
FTB XMod Compat
Official multi-mod integrations support for the FTB Mods
Fusion (Connected Textures)
Fusion allows resource packs to use additional texture and model types such as connected textures!
Cosmetic Armor Reworked
This mod allows you to wear two sets of armor, one for display, one for function.
Configured
Automatic in-game configuration menus for every mod!
Just Enough Resources (JER)
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Applied Energistics 2
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Yeetus Experimentus
Yeetus Experimental Settings
Crafting Tweaks
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FTB Ultimine (Forge)
Harvest multiple blocks at once
FTB Chunks (NeoForge)
A mod that allows you to claim chunks to protect your blocks and view minimap / large map
FTB Essentials (Forge & Fabric)
Adds many essential utility commands for servers
Fast Leaf Decay
Makes leaves decay faster when a tree is cut down.
CodeChicken Lib 1.8.+
Contains various tools to make modding easier.
Immersive Engineering
A retro-futuristic tech mod!
Trash Cans
Trash Cans adds trash cans which can be used to void items, liquids, and energy!
Cucumber Library
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Torchmaster
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Ars Nouveau
Craft custom spells, summon magical servants, and make powerful wearables and tools!
Mekanism
High-tech machinery, powerful energy generation, fancy gadgets and more. Now on Curse!
Building Gadgets
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Extreme sound muffler - (Neo)Forge
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FramedBlocks
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Titanium
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EMI
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GuideME
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PolyLib
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Thermal Foundation
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Botarium
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Forgiving Void
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Akashic Tome
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Brandon's Core
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Glodium
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Inventory Tweaks - ReFoxed
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Fuel Goes Here
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KubeJS Create
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Dark Mode Everywhere
Have dark GUIs everywhere with the power of shaders
Dark Utilities
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Runelic
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AlwaysEat
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LDLib
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Restricted Portals
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FTB Backups 2
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Blood Magic
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Embers Rekindled
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Lodestone
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KubeJS Mekanism UNOFFICIAL
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MythicBotany
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HammerLib
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Solar Flux Reborn
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Dank Storage
Big storage in little blocks
Cable Facades
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KubeJS Thermal
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Thermal Extra
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KubeJS Ars Nouveau
KubeJS support for Ars Nouveau
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Create: Liquid Fuel
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Architect's Palette
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PackagedAuto
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Stellar View
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Team ProjectE
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AppliedE
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This is just a port of KubeJS Immersive Engineering to Minecraft 1.20.1 until the mod itself is updated.
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Botania Editor
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KubeJS Addon - Blood Magic
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Kubejs Extended Crafting
Extended Crafting integration for KubeJS.
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Aetherworks Refracted
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Just a Well
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