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Modular Force Field Systems

by aurilisdev

Modular Force Field Systems adds forcefield generators that players build around a base to keep out unwanted entities and players.

ForgeNeoForgeClient and serverCustom license1.18.2 – 1.21.1

What it does

Fortron fields form the core of the mod. A fortron field is projected by a machine and can take the shape of a large sphere, a large cube or a large pyramid. Players choose the shape and size to cover the area they want to protect, and the field stays active as long as the machine has the power it needs.

Interdiction Matrix blocks fill a separate role. They target players, mobs or animals, and a player can set each one to protect a chosen group. The mod was based on the older Voltz mod MFFS and updated for newer versions of Minecraft, so the systems keep the original design while running on current game builds. Voltaic is required, and Electrodynamics is an optional addition.

Key features

  1. Fortron fields

    Machines project fortron fields in a spherical, cubic or pyramid shape, sized to cover a base.

  2. Interdiction Matrix

    Matrix blocks keep selected entities out of the protected area and can be set per group.

  3. Player protection

    Forcefields can block players who are not authorized to enter a protected base.

  4. Mob and animal protection

    Devices keep hostile mobs out and can also keep friendly animals, such as sheep, away from a base.

Compatibility

Latest build for each game version and loader.

1.21.1Not available1.21.1-0.6.1
1.20.11.20.1-0.5.21.20.1-0.5.2
1.19.21.19.2-0.5.2Not available
1.18.21.18.2-0.0.3-1Not available
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

VoltaicAPI for Electrodynamics, Nuclear Science and others of the Ampz mods.
Required

Optional 1

ElectrodynamicsElectrodynamics is a Minecraft Mod focused around science and technology that introduces many new machines/blocks and items into the game.
Optional

Use cases

Protecting a base

Players enclose a home or factory with a fortron field so that mobs and unwanted visitors cannot enter it.

Keeping animals out

Farms and gardens can be shielded from livestock that would otherwise wander through them.

Who it’s for: Players who want to build protected bases in survival or multiplayer worlds. Server owners who run shared bases can use the mod to keep a region under control.

Questions

Does Modular Force Field Systems need Voltaic?

Yes. Voltaic is a required dependency and must be installed next to the mod on Forge or NeoForge.

Must the server have the mod installed?

Yes. Installation covers the server and each player's game.

Which game versions does the mod support?

Files cover 1.18.2 – 1.21.1, with builds for 1.18.2, 1.19.2, 1.20.1 and 1.21.1. The latest NeoForge file is 1.21.1-0.6.1 for 1.21.1.

Does Electrodynamics change how the mod works?

Electrodynamics is an optional dependency. The mod runs without it, and installing it adds extra integration with the power systems it provides.

In the catalog

Modular Force Field Systems is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 32,366 mods support Minecraft 1.21.1.

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What the author says

MFFS intends to provide forcefield systems in Minecraft. Devices to protect your base from players, mobs, and even the friendly neighbor sheep! You should also check out our official modpack here: It is a recreation of voltz for minecraft 1.20
aurilisdev, on the Modrinth page

Official listing

Owner
aurilisdev
Published
2023-10-02
Updated on Modrinth
2026-10-14
Facts verified
2026-10-15

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