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Voltaic is a library that serves as the core component of several other mods aiming to recreate the old Voltz-modpack, such as Electrodynamics, Nuclear Science, MFFS, ICBM, and others.
Join us on discord: Click here
You should also check out my new Patreon: Mod Revival Process:
As previously mentioned, this mod is trying to revive many abandoned but amazing mods. Listed below are some of the mods that are being restored and renewed:
- Electrodynamics 1.21 (Project page)
- Nuclear Science 1.21 (Project page)
- Ballistix 1.21 (Project page)
- Assembly Line 1.21 (Project page)
- Blastcraft 1.21 (Project page)
- Modular Forcefield System 1.21(Project page
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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[1.21.1-1.1.2] Voltaic 1.1.2
by aurilisdev on Oct 18, 2026
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Fix generictile update bug: Wires not connecting instantly etc.
[1.21.1-1.1.1] Voltaic 1.1.1
by aurilisdev on Oct 18, 2026
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Fix a couple inventory bugs
[1.21.1-1.1.0] Voltaic 1.1.0
by aurilisdev on Oct 18, 2026
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# Voltaic 1.21.1-1.1.0
## New features
## Fixes
## Big clean-ups (under the hood)
## Updates
## Networking improvements
## New features
- Forge Energy compatibility** — Voltaic can now work alongside other energy mods like Forge Energy. It's turned **off by default**, so your setup won't change unless you enable it.
## Fixes
- Wrenches now actually rotate blocks** — Using a wrench on a block to rotate it worked before, but the rotation didn't happen. It's fixed now.
## Big clean-ups (under the hood)
- Fluid and gas components merged** — The code that handles fluids and gases has been combined and tidied up. Nothing changes how you use them in-game.
- Recipe "probables" cleaned up** — The code behind chance-based recipes (like "maybe this drops") has been reorganized and made cleaner.
- Removed outdated code** — Old, deprecated code has been stripped out across the mod.
## Updates
- Updated JEI and Neoforge** — The mod now uses newer versions of the JEI (Just Enough Items) and Neoforge libraries. This fixes an issue where the newest JEI wasn't showing fluids, and keeps things compatible with the latest setup.
## Networking improvements
- Safer GUI gauge clicking** — The packets (the messages that let you click gauges through the GUI) have been restructured to be safer and more reliable.
- Note: A large earlier commit ("Preliminary move to null-analysis-based system") introduced Voltaic's null-analysis system and bumped the version to 1.1.0. It's the foundation for the changes above and doesn't need separate explanation for daily use.*
[1.19.2-1.0.13] Voltaic 1.0.13
by aurilisdev on Oct 18, 2026
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Voltaic 1.19.2-1.0.13
- Fix Nuclear Science #193: Block entity network issues
[1.20.1-1.0.13] Voltaic 1.0.13
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1-1.0.13
- Fix Nuclear Science #193: Block entity network issues
[1.21.1-1.0.13] Voltaic 1.0.13
by aurilisdev on Oct 18, 2026
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Voltaic 1.21.1-1.0.13
- Fix Nuclear Science #193: Block entity network issues
[1.19.2-1.0.12] Voltaic 1.0.12
by aurilisdev on Oct 18, 2026
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Voltaic 1.19.2-1.0.12
- Fix Electrodynamics issue #443 (FluidStacks not loading correctly between clients/dedicated servers)
- Improve packet flow
[1.21.1-1.0.12] Voltaic 1.0.12
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1-1.0.12
- Fix Electrodynamics issue #443 (FluidStacks not loading correctly between clients/dedicated servers)
- Improve packet flow
[1.21.1-1.0.12] Voltaic 1.0.12
by aurilisdev on Oct 18, 2026
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Voltaic 1.21.1-1.0.12
- Fix Electrodynamics issue #443 (FluidStacks not loading correctly between clients/dedicated servers)
- Improve packet flow
[1.19.2-1.0.11] Voltaic 1.0.11
by aurilisdev on Oct 18, 2026
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Voltaic 1.19.2-1.0.11
- Backport fixes from 1.21.1
[1.20.1-1.0.11-1] Voltaic 1.0.11-1
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1-1.0.11-1
- Fix grinded particle (undo fix that shouldve only applied to 1.21)
[1.20.1-1.0.11] Voltaic 1.0.11
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1 1.0.11
- Significantly optimized the radiation system, reducing its server performance impact and fixing potential freezes caused by radiation raycasts.
[1.21.1-1.0.11] Voltaic 1.0.11
by aurilisdev on Oct 18, 2026
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Voltaic 1.21.1 1.0.11
- Significantly optimized the radiation system, reducing its server performance impact and fixing potential freezes caused by radiation raycasts.
[1.20.1-1.0.10] Voltaic 1.0.10
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1 1.0.10
- Reworked radiation shielding to use percentage-based blocking instead of flat radiation subtraction.
- Added default radiation shielding for regular solid blocks based on hardness.
- Radiation is now sampled across the entity body instead of only using height slices, making shielding more reliable for players and mobs.
- Open doors and trapdoors now provide reduced radiation protection compared to closed ones.
- Very small radiation amounts are now ignored to prevent tiny leftover radiation from applying effects.
- Shielding tooltips now show “Radiation Blocked” as a percentage.
- Water now reduces radiation by 30%.
[1.21.1-1.0.10] Voltaic 1.0.10
by aurilisdev on Oct 18, 2026
Download
Voltaic 1.21.1 1.0.10
- Reworked radiation shielding to use percentage-based blocking instead of flat radiation subtraction.
- Added default radiation shielding for regular solid blocks based on hardness.
- Radiation is now sampled across the entity body instead of only using height slices, making shielding more reliable for players and mobs.
- Open doors and trapdoors now provide reduced radiation protection compared to closed ones.
- Very small radiation amounts are now ignored to prevent tiny leftover radiation from applying effects.
- Shielding tooltips now show “Radiation Blocked” as a percentage.
- Water now reduces radiation by 30%.
[1.20.1-1.0.9] Voltaic 1.0.9
by aurilisdev on Oct 18, 2026
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Voltaic 1.20.1 1.0.9
- Fixed Assembly Line conveyor belts crashing when connected to item inventories. Fixes #100.
[1.21.1-1.0.9] Voltaic 1.0.9
by aurilisdev on Oct 18, 2026
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Voltaic 1.21.1 1.0.9
- Fixed Assembly Line conveyor belts crashing when connected to item inventories. Fixes #100.
[1.20.1-1.0.8] Voltaic 1.0.8
by aurilisdev on Oct 18, 2026
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- Backport many fixes from 1.21.1
[1.21.1-1.0.8] Voltaic 1.0.8
by aurilisdev on Oct 18, 2026
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- Fix packet setDirty order
[1.21.1-1.0.7] Voltaic 1.0.7
by aurilisdev on Oct 18, 2026
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- Allow redstone connections to machines. Also fixes some issues.
[1.21.1-1.0.6] Voltaic 1.0.6
by aurilisdev on Oct 18, 2026
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- Fix packet bugs: Possibly fix electro #403
[1.21.1-1.0.5] Voltaic 1.0.5
by aurilisdev on Oct 18, 2026
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- Fix electrodynamics #427: Drop inventory items on creative block break.
[1.21.1-1.0.4] Voltaic 1.0.4
by aurilisdev on Oct 18, 2026
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- Fix property overriding (#92 and #96)
- Fix modeldata crash (#90)
- Fix too radioactive items (Nuclear Science #185)
[1.20.1-1.0.2-0] Voltaic 1.20.1-1.0.2-0
by aurilisdev on Oct 18, 2026
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Changelog:
- Add some api required for a fix to electro issue #402
[1.21.1-1.0.2-0] Voltaic 1.21.1-1.0.2-0
by aurilisdev on Oct 18, 2026
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Changelog:
- Add some api required for a fix to electro issue #402
- Fix autoejector/injector issue in 1.21.1
[1.20.1-1.0.1-4] Voltaic 1.20.1-1.0.1-4
by aurilisdev on Oct 18, 2026
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Changelog:
- Fix auto inject/eject upgrades
[1.20.1-1.0.1-3] Voltaic 1.20.1-1.0.1-3
by aurilisdev on Oct 18, 2026
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Changelog:
- Backport fixes from 1.21.1 to 1.20.1
[1.21.1-1.0.1-3] Voltaic 1.21.1-1.0.1-3
by aurilisdev on Oct 18, 2026
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Changelog:
- Fix possible incompatibility with Essentials mod.
[1.21.1-1.0.1-2] Voltaic 1.21.1-1.0.1-2
by aurilisdev on Oct 18, 2026
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Bug fixes:
- Fix #88: possible infinite loop for entities
[1.21.1-1.0.1-1] Voltaic 1.21.1-1.0.1-1
by aurilisdev on Oct 18, 2026
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- Fix configuration (server did not launch)
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