Applied Energistics 2
A digital storage and auto-crafting system. Converts items into data for virtually unlimited storage.
📖 Introduction
Applied Energistics 2 (AE2) was released in 2014 by AlgorithmX2 as a complete redesign of the original Applied Energistics (2012). The project is now maintained by the community-led team-appliedenergistics under an LGPL-3.0 open-source license, with stable support across versions from 1.12.2 through 1.21.1 — virtually every major Minecraft release.
**Five core systems** — the ME Network (converts items, fluids, and gases into stored data), Auto-Crafting (encoded patterns → Molecular Assemblers → multi-step automatic production), Channel-based signal distribution (up to 8 channels per cable), Quantum Network Bridges (link networks across any distance or dimension), and ME Terminals (access your entire base inventory from anywhere). Together they act as the nervous system of a late-game base.
What sets AE2 apart from other storage mods like Refined Storage or Sophisticated Storage is **the depth of the channel system**. The constraints can feel restrictive at first, but designing a network with P2P Tunnels and Dense Cables becomes a game in itself. AE2 also integrates smoothly with other tech mods — Mekanism ore processing lines, Immersive Engineering power generation — through ME Interfaces that bridge it all together.
Kitchen-sink modpacks like ATM10, ATM10 Sky, All The Mons, and FTB StoneBlock 4 ship it by default almost without exception, and late-game crafting like the ATM Star is genuinely difficult without AE2's autocrafting. The community line about it — 'once you install it, you literally can't go back' — describes the mod more accurately than anything else.
🕒 When to Use This Mod
It becomes essentially required once your storage starts spilling past a hundred slots. The sweet spot is the moment your ore processing and basic automation are running — before that, hunting meteorites just eats time. Once you do commit, every chest in your base eventually collapses into a single ME terminal.
📦 Where It Matters Most
In ATM10 it's basically mandatory for late-game ATM Star crafting — the recipe complexity demands an autocrafting brain. In tight-space packs like FTB StoneBlock 4, a single ME Controller becomes the spine of your entire resource flow, and skyblock variants like ATM10 Sky push you into AE2 even earlier because every chest you skip is a chunk of platform you don't have to build.
🎮 How It Changes Your Playthrough
The shift is hard to overstate. The five-minute sorting ritual after every mining trip just vanishes, and once autocrafting clicks you stop thinking about recipes at all — you ask the terminal for a stack of something twelve steps deep and walk away. Going back to a chest-and-hopper pack afterward feels genuinely sluggish.
🚀 Getting Started — First 30 Minutes
AE2 feels hardest right at the entry point. Once you push through finding meteorites and farming Certus Quartz, the system grows incrementally and settles in on its own. Following the flow below for about 60 minutes will land you a working 1x1 ME terminal on your first run.
Step 1 — Certus Quartz and meteorites (15 min)
Every AE2 component is built around Certus Quartz crystals. They generate in some stone biomes, but the fastest source is meteorites.
- Craft a Meteorite Compass from 8 vanilla Quartz — it points toward the nearest meteorite
- Follow it to a surface or buried meteorite
- Inside is a Mysterious Cube (mineable) containing Charged Certus Quartz and Inscriber Presses
The four Presses (Calculation, Engineering, Logic, Silicon) are essential for processor crafting. If a meteorite doesn't drop one, you may need to hunt a few before the set is complete.
Step 2 — Inscriber and processor circuits (20 min)
Making the four processor types requires an Inscriber.
- Craft the Inscriber (iron + Iron Frame + a Logic Processor)
- Slot in each Press and feed it the matching material (Gold, Diamond, Certus Quartz, Redstone)
- Mass-produce Calculation, Engineering, and Logic Processors
Resource-tight packs like FTB StoneBlock 4 stretch this step out the most; in ATM10 you'll wrap it inside half an hour once the Inscriber is running.
Step 3 — Your first ME network (20 min)
Now for the actual ME system.
- Pull external power (FE/RF) in via an Energy Acceptor and a Quartz Fiber
- Drop 1–2 1k Storage Cells into an ME Drive — each 1k holds 8192 items across 63 types
- Add an ME Terminal so you can actually interact with the inventory
- Remember: each cable carries up to 8 channels. Start small.
Honestly, I've watched the whole system go dark from running out of channels more than once — Dense Cables and P2P Tunnels come in naturally later, so early on just design as if 8 channels is your hard ceiling.
Where to go next — past the 60-minute mark
- Crystal Growth automation: Crystal Growth Accelerator with an auto-feed line. Every late-game upgrade leans on certus crystals, so this should be your second automated line
- Auto-crafting: Pattern Provider + Molecular Assembler combo for multi-step recipe automation
- P2P Tunnels: the real fix for channel scarcity — one Dense Cable can carry 32 channels
Searching 'AE2' or 'Applied' in JEI shows every component and recipe at a glance, and there's a built-in ME guidebook in-game for anything that's not obvious.
💡 Gameplay Tips
- Finding a Meteorite is the first step. Craft and use a Meteorite Compass.
- You need to understand the Channel system. Each cable supports up to 8 channels.
- Using P2P Tunnels makes channel management much easier.
- Auto-crafting works by encoding Patterns and inserting them into a Molecular Assembler.
- The thing I always regret when building AE2 is delaying the Crystal Growth automation — every late-game upgrade routes through certus quartz crystals, and harvesting them by hand chews up entire sessions. Make crystal growth your second automated line right after the ME system stabilizes; you'll save yourself a real amount of pain.
⚠️ Common Confusing Points
- • The Channel system is the most confusing part at first. Start small and expand gradually.
- • If the power supply is cut off, the entire system shuts down. Secure a stable power source.
❓ FAQ
What's the first thing to do when starting AE2?
Craft a Meteorite Compass first. AE2 gates processor circuits behind the four Inscriber Presses (Calculation, Engineering, Logic, Silicon) that only drop from meteorites, so hunting meteorites is effectively mandatory progression. Expect roughly 4–8 Charged Certus Quartz plus the full Press set as your first reward.
How does this differ from Refined Storage? Which should I use?
The big difference is the channel system. Refined Storage has no channel restrictions so the entry is easier, but AE2's channel design becomes a meta-puzzle in its own right. In kitchen-sink packs (ATM10 etc.), late-game content like the ATM Star is often built assuming AE2's autocrafting, so if both are present AE2 tends to slot into progression more naturally.
Can I use it alongside Mekanism or Immersive Engineering?
Yes — that's actually the standard setup. Mekanism handles 5x ore processing and power, IE provides industrial visuals and supporting power, AE2 handles storage and autocrafting. Roles barely overlap. Late-game progression in packs like ATM10 assumes you're running all three together, so it's not really a 'pick one' situation.
My ME system suddenly stopped. Why?
About 90% of the time it's one of two things. First: power loss — if FE/RF into the Energy Acceptor drops to zero, the whole network shuts down. Second: channel overflow — exceeding the 8-channel-per-cable limit makes some machines stop working. A red LED on the ME Controller means power; greyed-out machines on a cable line mean channels.
Auto-crafting won't even start.
Check that the Pattern Provider actually contains a pattern, and that a Crafting CPU (Crafting Storage + Crafting Co-Processor multiblock) is wired into the network. In 1.20+, Pattern Providers replaced the older Interface, so following old guides causes a lot of confusion. The safest flow is: build the pattern in JEI, then encode it through an ME Pattern Encoder.
📦 Modpacks With This Mod
Vault Hunters 3rd Edition
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🎯 Best for Best for those who want to experience roguelike/Diablo-style dungeon crawlers in Minecraft, who enjoy the infinite-repeat value of RPG builds, or who want cooperative RPG with 4 family members entering dungeons together. For set-story/main-quest progression, DarkRPG or Cisco's RPG fit better.
All the Mods 10
The latest in the ATM series. A massive kitchen-sink modpack with over 400 mods to freely explore. Built on 1.21 NeoForge for the newest content available.
🎯 Best for A good fit if you want automation, magic, and exploration all in one pack.
All the Mons
A dream crossover of the All the Mods series and Cobblemon. Raise Pokémon through tech and magic automation, build a powerful team, and enjoy all the mods together.
🎯 Best for A fit if you enjoy Pokémon catching/training but also want ATM-style automation on the side.
All the Mods 10: To the Sky (ATM10SKY)
ATM10's massive mod lineup reimagined as a skyblock progression challenge. Start from a single tree and build infinite possibilities through tech and magic.
🎯 Best for Best for players who enjoy fitting factory lines into tight, vertical space — automation as design puzzle.
FTB StoneBlock 4
Underground survival evolved. A 1.21.1 release featuring Vaults, Echoes, and the World Engine. A unique mining and building modpack starting in a world made entirely of stone.
🎯 Best for Suits players who want stone-out automation puzzles with clear FTB Quests guidance.