As of the 1st of June 2025, all future updates for ampz mods will require Voltaic API, and not Electrodynamics, in order to function. This update affects all the mods and brings world breaking changes, which are written in the changelogs. Note that this should however not corrupt your world. If you have such issues reach out on our discord channel!
MFFS intends to provide forcefield systems in Minecraft. Devices to protect your base from players, mobs, and even the friendly neighbor sheep!
This project is based upon Voltaic and requires this mod to run.
Join us on discord: Click here
You should also check out my new Patreon:
You should also check out our official modpack here: https://www.curseforge.com/minecraft/modpacks/ampz-1-18
It is a recreation of voltz for minecraft 1.20

Features:
- Fortron fields
- Large spherical fortron fields
- Large cube fortron fields
- Large pyramid-shaped fortron fields
- Interdiction Matrix's
- Player Protection
- Mob Protection
- Animal Protection
- Item Confiscation
Permission to use in modpacks:
Yes you are allowed to do this:
However, as written in the license (special permissions referring to distribution):
You may only use the special permissions above, if you provide proper attribution to the Owner of this software "Sebastian Siljuholtet Johansen" (in the form of credit) and an URL to this Software�s official download page were the pack is accessed. All Versions
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## New features
- Sponge module now works** — The sponge module no longer just sits there as a placeholder. It now actually removes fluids from blocks inside the field.
- Biometric identification for the field projector** — The field projector can now use a Biometric Identifier to let specific players pass through the field while blocking others.
- Rendered fortron rays** — The fortron beams/rays now render properly.
- Colourless fortron fluid texture** — Added a texture for colourless fortron fluid.
- Updated JEI and Neoforge** — The mod now uses newer versions of the JEI (Just Enough Items) and Neoforge libraries, keeping things compatible with the latest setup.
## Fixes
- Fixed Interdiction Matrix permissions, protection, and inventory transfers** — The Interdiction Matrix now handles permissions, protection, and moving items in/out correctly.
- Beams now use default Minecraft settings** — Added a config option so the fortron beams can be based on your default Minecraft settings.
- Reverted fortron field colour when modules are absent** — The field colour is now reverted when modules are missing.
- Removed deprecated code** — Old, deprecated code has been stripped out across the mod.
- Note: A large earlier commit ("Preliminary move to null-analysis-based system") introduced MFFS' null-analysis system and bumped the version to 0.6.0. It's the foundation for the changes above and doesn't need separate explanation for daily use.*
- Implement #53
- Update health api
- Implement proper forcefield missile protection
- Implement #53
- Update health api
- Implement proper forcefield missile protection
- Implement #53
- Update health api
- Implement proper forcefield missile protection
- Fix config assignment
- Implement health
- Move to block-only Fortron fields
- Fix #14
- Implement health
- Move to block-only Fortron fields
- Fix #14
- Implement health
- Move to block-only Fortron fields
- Fix #14
- Backport all fixes from 1.21.1
- Update lang files
- Update lang files (merge #51)
- Backport fixes from 1.21.1 to 1.20.1
- Fix configuration (server did not launch)
## Version 0.4.0-0
### Configuration
- Updated MFFS to use the new configuration system and the newest platform version
### Fixes
- Resolved GitHub issues 45 and 46
### Maintenance
- Updated ignore rules for the repository
- fix GUIs not working past x/z = 32768
- fix GUIs not working past x/z = 32768
- fix GUIs not working past x/z = 32768
- Convert to new Voltaic formatting
- Overhaul block textures
- Fix multiple bugs
- NOTE: ALL MACHINE INVENTORIES WILL WIPE WITH THIS UPDATE
- Convert to new Voltaic formatting
- Overhaul block textures
- Fix multiple bugs
- NOTE: ALL MACHINE INVENTORIES WILL WIPE WITH THIS UPDATE
- Convert to new Voltaic formatting
- Overhaul block textures
- Fix multiple bugs
- NOTE: ALL MACHINE INVENTORIES WILL WIPE WITH THIS UPDATE
- Convert to new Voltaic formatting
- Overhaul block textures
- Fix multiple bugs
- NOTE: ALL MACHINE INVENTORIES WILL WIPE WITH THIS UPDATE
- Fix render issue
- Fix wrong fortron field projector color being renderen when there isnt a shape module in it.
- Buff capacity upgrade
- Fix int cast issue ruining fortron bucket production number in screens
- Update mod to 1.21.1
- Fix a whole bunch of bugs
- Update ALL machine models (except the coercion deriver)
- Update machine rendering (now preview for fortron field, and animated fortron on machines etc...)
- Fixed horrifying bug not making the mod work...
- Fixed horrifying bug not making the mod work...
- Update to the newest Forge version
- Fix major bug that made forcefields not work... ;(