Magnetization

Build magnetic docks, launch ships with railguns, and power your next airship with fusion.

Magnetization is a Minecraft 1.21.1 / NeoForge addon for Create: Aeronautics. It brings magnetic forces to Sable-driven ships, alongside propulsion, industrial processing, reactive equipment, and new resources to explore.

What can you build?

• Magnetic docks and transport systems. Electromagnets, kinetic electromagnets, anchors, tractor beams, and repulsor coils pull, push, hold, and steer ships. Use permanent magnets for passive fields and polarity inverters to change how your craft responds.
• Railgun launchers. Paired rails capture and accelerate ships or magnetic targets. Use automatic firing or a paired Railgun Remote, and optionally assemble staged blocks into a projectile. Railguns also work aboard moving Sable ships.
• Airship propulsion. Progress through Micro-Thrusters, MHD Jets, Ion Thrusters, Solar Sails, and expandable Fusion Thrusters. Different fuels and working fluids give each drive its own role.
• Fusion power and fuel production. Split water in an Electrolyzer, work through Hydrogen, Deuterium, Tritium, and Helium-3 progression, and build expandable Tokamak reactors. Optional coolant loops improve reactor and Fusion Thruster performance.
• Magnetic mining and automation. The Magnetic Excavator pulls ferromagnetic blocks toward itself and delivers recovered drops to adjacent inventories. Item and fluid handling support factory automation, including fuel intake for fuel-burning machines.
• Noble-gas processing and lighting. Separate atmospheric gases with Create rotation, pipe them into machinery, and excite gas clouds with redstone or a Gas Exciter. Gas Vents, Gas Detectors, and propellant-specific Ion Thrusters extend the system.
• Rare-earth materials and equipment. Process magnetic ores into useful metals, then advance to Samarium–Cobalt and Neodymium–Iron–Boron magnets. Discover new ores, Helium-3 geodes, and optional Magnetic Anomaly and Petrified Forest biomes.
• Tools, armor, and golems. Use a Field Compass, Magnetic Grapple, and Repulsor Gun; magnetize equipment for special abilities; and build Gallium, MR Fluid, and iron-oxide golems with distinct material behavior.

How magnetism works

Fields have polarity, strength, range, and shape. Like poles repel and opposite poles attract. A ship's materials affect its magnetic response, and off-center forces can turn it as well as move it. Fields also interact with tagged metal items, magnetizable mobs, and entities wearing metal armor.

Magnets aboard a ship do not directly propel their own host or connected child structures. Build magnetic transport between the world and a ship, between separate craft, or use dedicated propulsion machinery.

Create's Engineer's Goggles show live machine and field information. In-game Ponder scenes explain major systems, and the optional Patchouli Field Manual provides a craftable guide.

Installation

Install Magnetization and its required dependencies on both the client and server:

Requirement	Version
Minecraft	1.21.1
NeoForge	21.1.219+, below 22.0
Create	6.0.10+
Sable	2.0.3+
Create: Aeronautics	1.3.0+
Create Propulsion: Simulated	1.3.0+
TerraBlender	4.1.0.8+

Choose the NeoForge 1.21.1 builds of dependencies. The complete required stack needs NeoForge 21.1.219 or newer.

Optional integrations

Magnetization detects supported addons when installed. Integrations include:

• Information and guides: Jade, WTHIT, The One Probe, JEI, REI, EMI, Just Enough Resources, Patchouli, and Curios.
• Ships, portals, and transport: AeroPortals, Immersive Aeronautics, Create: Tracks, Steam 'n' Rails NeoForge, Coasters Simulated, Track Styles, Coasters: Magnetized, Coasters: Engineered, and Coasters Extras.
• Factories and materials: Create: New Age, Crafts & Additions, The Factory Must Grow, Cosmonautics, Diesel Generators, Copycats+, Enchantment Industry, Ender Transmission, Immersive Engineering, and Alex's Caves.
• Mining and projectiles: Ore Excavation, Create Ore Excavation, Create: Big Cannons, and CBC Aeronautics Missiles.

These integrations range from shared materials and recipes to field reactions, machine behavior, and HUD support. They target individual mods, so custom modpacks receive the same support. See the full compatibility reference for details and controls.

Latest release: 1.4.4

1.4.4 improves structure safety: the Magnetic Excavator skips block entities by default, protecting inventories and live machinery from extraction. Ship-mounted emitters also exclude connected child structures from their own fields.

It includes the earlier coaster and missile integrations, compatibility with older supported AeroPortals / JEI / Coasters Simulated builds, and mounted-Railgun improvements. Read the full changelog for release details.

Documentation, configuration, and feedback

Field strength, propulsion, machine rates, world generation, optional content, and compatibility behavior are configurable. Datapack tags and gas profiles let pack authors extend materials and fluid support.

• Getting started and gameplay reference
• Configuration reference
• Source code and contributions
• Report a bug or suggest a feature

For bug reports, include your mod versions, relevant logs, and steps to reproduce. /magnetization version prints the core stack versions, and /magnetization help lists available commands.