Freedom251 › Minecraft Performance Mods
Alternate Current
What Alternate Current is
Alternate Current is a free, MIT-licensed mod for Minecraft: Java Edition that changes how redstone dust handles power and updates. It builds networks from connected wires and distributes power from wires receiving power outside their network. The project describes its block updates as deterministic and less dependent on network location, while aiming to maintain high Vanilla parity. Its README says redstone dust can contribute up to 20 times less MSPT with the mod. The project also says each wire emits 24 block updates and 6 shape updates when its power changes, and network-level optimizations can reduce updates by up to 20%. Supported Minecraft versions and loaders vary by release. Listed loaders include Fabric, Forge, NeoForge, Ornithe and Quilt, with server-side and singleplayer environments supported. The project links to its source repository, issue reporting and a Discord server. GitHub lists no detected security policy and no published security advisories.
Who it suits
Alternate Current suits Minecraft: Java Edition players and server operators looking to reduce the work associated with redstone updates. Compatibility depends on the Minecraft version and mod loader used.
What it does well
- Free and MIT licensed.
- Targets reduced server lag.
- Supports server-side and singleplayer environments.
- Lists five supported mod loaders.
What to know first
- Minecraft and loader compatibility varies by release.
- No detected security policy is listed.
- No published security advisories are listed.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Alternate Current | MIT licensed Minecraft mod | Free |
As github.com lists them, read 3 Oct 2026. The maker's own page has the final word.
Getting started
- Open the project website at GitHub.
- Choose a release compatible with your Minecraft version and mod loader.
- Use one of the listed supported loaders: Fabric, Forge, NeoForge, Ornithe, or Quilt.
- Use it in a supported server-side or singleplayer environment.
Verdict
Alternate Current centers on redstone network calculations and reduced update work. Check the release-specific Minecraft and loader support before using it.
Questions
Does Alternate Current cost anything?
It is free, with a listed price of $0.
Which Minecraft versions are listed?
The provided version list includes 1.14 through 1.21.11 and several specific 1.21 releases. The broader project release range extends through 26.3 and early Minecraft releases; compatibility varies by release.
Which mod loaders does it support?
Listed loaders are Fabric, Forge, NeoForge, Ornithe, and Quilt. Available loaders depend on the release.
Is Alternate Current open source?
The project is MIT licensed and links to its source repository.
What environments are supported?
Modrinth lists server-side and singleplayer environments.
Facts from Alternate Current's own pages
- Compatibility limits
- Available Minecraft versions and loaders vary by release; CurseForge lists version-specific files for Fabric, Quilt, NeoForge, and Forge. · curseforge.com, 3 Oct 2026
- Distribution
- Modrinth links to the source repository, issue reporting, and a Discord server. · modrinth.com, 3 Oct 2026
- License
- The project is licensed under MIT. · modrinth.com, 3 Oct 2026
- Loaders
- Modrinth lists Fabric, Forge, NeoForge, Ornithe, and Quilt as supported platforms. · modrinth.com, 3 Oct 2026
- Network calculation
- It builds networks of connected wires and spreads power from wires receiving power from outside the network. · github.com, 3 Oct 2026
- Performance
- The README says redstone dust contributes up to 20 times less MSPT with Alternate Current while maintaining high Vanilla parity. · github.com, 3 Oct 2026
- Predictable updates
- The mod makes redstone network block updates deterministic and less dependent on location. · github.com, 3 Oct 2026
- Purpose
- Alternate Current is an efficient, non-locational redstone dust implementation that reduces lag by optimizing power calculations and block and shape updates. · github.com, 3 Oct 2026
- Reduced updates
- The README says each wire emits 24 block updates and 6 shape updates when its power changes, and network-level optimizations can reduce updates by up to 20%. · github.com, 3 Oct 2026
- Runtime
- Modrinth lists server-side and singleplayer as supported environments. · modrinth.com, 3 Oct 2026
- Security
- The GitHub repository has no detected security policy and no published security advisories. · github.com, 3 Oct 2026
- Supported game
- The project supports Minecraft: Java Edition, with listed versions spanning 26.3 through early Minecraft releases. · modrinth.com, 3 Oct 2026
Where Alternate Current stands on Freedom251
- Minecraft Performance Mods#4 of 24